10203520113 has 24 divisors (see below), whose sum is σ = 14999224968. Its totient is φ = 6683000832.

The previous prime is 10203520099. The next prime is 10203520123. The reversal of 10203520113 is 31102530201.

10203520113 is a `hidden beast` number, since 10 + 20 + 3 + 520 + 113 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5044976784 + 5158543329 = 71028^2 + 71823^2 .

It is not a de Polignac number, because 10203520113 - 2⁴ = 10203520097 is a prime.

It is a super-2 number, since 2×10203520113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10203520123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76945 + ... + 162257.

It is an arithmetic number, because the mean of its divisors is an integer number (624967707).

Almost surely, 2^10203520113 is an apocalyptic number.

It is an amenable number.

10203520113 is a deficient number, since it is larger than the sum of its proper divisors (4795704855).

10203520113 is a wasteful number, since it uses less digits than its factorization.

10203520113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85553 (or 85550 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The spelling of 10203520113 in words is "ten billion, two hundred three million, five hundred twenty thousand, one hundred thirteen".