31323030234 has 16 divisors (see below), whose sum is σ = 62799234240. Its totient is φ = 10415481120.

The previous prime is 31323030173. The next prime is 31323030259. The reversal of 31323030234 is 43203032313.

It is a happy number.

It is a super-2 number, since 2×31323030234² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6379582 + ... + 6384489.

It is an arithmetic number, because the mean of its divisors is an integer number (3924952140).

Almost surely, 2^31323030234 is an apocalyptic number.

31323030234 is an abundant number, since it is smaller than the sum of its proper divisors (31476204006).

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

31323030234 is a wasteful number, since it uses less digits than its factorization.

31323030234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12764485.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 31323030234 its reverse (43203032313), we get a palindrome (74526062547).

The spelling of 31323030234 in words is "thirty-one billion, three hundred twenty-three million, thirty thousand, two hundred thirty-four".