311032431203 has 6 divisors (see below), whose sum is σ = 336798431604. Its totient is φ = 287106859416.

The previous prime is 311032431167. The next prime is 311032431233. The reversal of 311032431203 is 302134230113.

It is not a de Polignac number, because 311032431203 - 2²⁴ = 311015653987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311032431233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920214125 + ... + 920214462.

It is an arithmetic number, because the mean of its divisors is an integer number (56133071934).

Almost surely, 2^311032431203 is an apocalyptic number.

311032431203 is a deficient number, since it is larger than the sum of its proper divisors (25766000401).

311032431203 is a wasteful number, since it uses less digits than its factorization.

311032431203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840428613 (or 1840428600 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 311032431203 its reverse (302134230113), we get a palindrome (613166661316).

The spelling of 311032431203 in words is "three hundred eleven billion, thirty-two million, four hundred thirty-one thousand, two hundred three".