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10301121031020 = 223583137163211439
BaseRepresentation
bin1001010111100110101010…
…1010001110101101101100
31100110202222211120120000220
42111321222222032231230
52322233143440443040
633524134125451340
72112142245024651
oct225715252165554
940422884516026
1010301121031020
1133117542aa536
1211a4514710b50
135995122bc5a1
142788110c5c28
1512ce50c3e2d0
hex95e6aa8eb6c

10301121031020 has 384 divisors, whose sum is σ = 29792026091520. Its totient is φ = 2658772408320.

The previous prime is 10301121031001. The next prime is 10301121031027. The reversal of 10301121031020 is 2013012110301.

It is a happy number.

It is a super-2 number, since 2×103011210310202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10301121031027) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23464967961 + ... + 23464968399.

It is an arithmetic number, because the mean of its divisors is an integer number (77583401280).

Almost surely, 210301121031020 is an apocalyptic number.

10301121031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10301121031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14896013045760).

10301121031020 is an abundant number, since it is smaller than the sum of its proper divisors (19490905060500).

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

10301121031020 is a wasteful number, since it uses less digits than its factorization.

10301121031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10301121031020 its reverse (2013012110301), we get a palindrome (12314133141321).

The spelling of 10301121031020 in words is "ten trillion, three hundred one billion, one hundred twenty-one million, thirty-one thousand, twenty".