31253111512234 has 32 divisors (see below), whose sum is σ = 47005042346496. Its totient is φ = 15584827688640.

The previous prime is 31253111512229. The next prime is 31253111512241. The reversal of 31253111512234 is 43221511135213.

It is a super-2 number, since 2×31253111512234² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31253111512234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8751919669 + ... + 8751923239.

It is an arithmetic number, because the mean of its divisors is an integer number (1468907573328).

Almost surely, 2^{31253111512234} is an apocalyptic number.

31253111512234 is a deficient number, since it is larger than the sum of its proper divisors (15751930834262).

31253111512234 is a wasteful number, since it uses less digits than its factorization.

31253111512234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550.

The product of its digits is 21600, while the sum is 34.

Adding to 31253111512234 its reverse (43221511135213), we get a palindrome (74474622647447).

The spelling of 31253111512234 in words is "thirty-one trillion, two hundred fifty-three billion, one hundred eleven million, five hundred twelve thousand, two hundred thirty-four".