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1020121010120 = 235191379797551
BaseRepresentation
bin11101101100000111111…
…00110100111111001000
310121112002222122122102002
432312003330310333020
5113203201434310440
62100345341330132
7133462356342062
oct16660374647710
93545088578362
101020121010120
113636a3796683
12145858566948
1375273a620a4
143753482c732
151b807e37115
hexed83f34fc8

1020121010120 has 64 divisors (see below), whose sum is σ = 2433711916800. Its totient is φ = 383750438400.

The previous prime is 1020121010093. The next prime is 1020121010143. The reversal of 1020121010120 is 210101210201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4794656 + ... + 5002895.

It is an arithmetic number, because the mean of its divisors is an integer number (38026748700).

Almost surely, 21020121010120 is an apocalyptic number.

1020121010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020121010120 is an abundant number, since it is smaller than the sum of its proper divisors (1413590906680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020121010120 is a wasteful number, since it uses less digits than its factorization.

1020121010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797718 (or 9797714 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1020121010120 its reverse (210101210201), we get a palindrome (1230222220321).

The spelling of 1020121010120 in words is "one trillion, twenty billion, one hundred twenty-one million, ten thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 137 152 190 274 380 548 685 760 1096 1370 2603 2740 5206 5480 10412 13015 20824 26030 52060 104120 9797551 19595102 39190204 48987755 78380408 97975510 186153469 195951020 372306938 391902040 744613876 930767345 1342264487 1489227752 1861534690 2684528974 3723069380 5369057948 6711322435 7446138760 10738115896 13422644870 25503025253 26845289740 51006050506 53690579480 102012101012 127515126265 204024202024 255030252530 510060505060 1020121010120