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1020101131 = 7179814127
BaseRepresentation
bin111100110011011…
…000001000001011
32122002111111200101
4330303120020023
54042121214011
6245120150231
734164500530
oct7463301013
92562444611
101020101131
11483903095
12245768377
1313345764a
14996a0d87
155e8522c1
hex3ccd820b

1020101131 has 8 divisors (see below), whose sum is σ = 1172344320. Its totient is φ = 869486568.

The previous prime is 1020101119. The next prime is 1020101141. The reversal of 1020101131 is 1311010201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020101131 - 27 = 1020101003 is a prime.

It is a super-2 number, since 2×10201011312 = 2081212634934958322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020101141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405811 + ... + 408316.

It is an arithmetic number, because the mean of its divisors is an integer number (146543040).

Almost surely, 21020101131 is an apocalyptic number.

1020101131 is a deficient number, since it is larger than the sum of its proper divisors (152243189).

1020101131 is an equidigital number, since it uses as much as digits as its factorization.

1020101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814313.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1020101131 is about 31939.0220733197. The cubic root of 1020101131 is about 1006.6559766833.

Adding to 1020101131 its reverse (1311010201), we get a palindrome (2331111332).

The spelling of 1020101131 in words is "one billion, twenty million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 7 179 1253 814127 5698889 145728733 1020101131