203102320113 has 24 divisors (see below), whose sum is σ = 365760023616. Its totient is φ = 105507698400.

The previous prime is 203102320103. The next prime is 203102320121. The reversal of 203102320113 is 311023201302.

203102320113 is a `hidden beast` number, since 20 + 310 + 2 + 320 + 1 + 13 = 666.

It is not a de Polignac number, because 203102320113 - 2⁴ = 203102320097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203102320103) 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, 146537778 + ... + 146539163.

It is an arithmetic number, because the mean of its divisors is an integer number (15240000984).

Almost surely, 2^203102320113 is an apocalyptic number.

It is an amenable number.

203102320113 is a deficient number, since it is larger than the sum of its proper divisors (162657703503).

203102320113 is a wasteful number, since it uses less digits than its factorization.

203102320113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293076965 (or 293076962 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203102320113 its reverse (311023201302), we get a palindrome (514125521415).

The spelling of 203102320113 in words is "two hundred three billion, one hundred two million, three hundred twenty thousand, one hundred thirteen".