311203003113 has 24 divisors (see below), whose sum is σ = 473256305600. Its totient is φ = 196515141984.

The previous prime is 311203003103. The next prime is 311203003201. The reversal of 311203003113 is 311300302113.

It is a happy number.

311203003113 is a `hidden beast` number, since 31 + 1 + 20 + 300 + 311 + 3 = 666.

It is not a de Polignac number, because 311203003113 - 2²⁴ = 311186225897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311203003103) 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, 848556 + ... + 1158642.

Almost surely, 2^311203003113 is an apocalyptic number.

It is an amenable number.

311203003113 is a deficient number, since it is larger than the sum of its proper divisors (162053302487).

311203003113 is a wasteful number, since it uses less digits than its factorization.

311203003113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315981 (or 315978 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 311203003113 its reverse (311300302113), we get a palindrome (622503305226).

The spelling of 311203003113 in words is "three hundred eleven billion, two hundred three million, three thousand, one hundred thirteen".