31013143234 has 8 divisors (see below), whose sum is σ = 46971362880. Its totient is φ = 15356022276.

The previous prime is 31013143223. The next prime is 31013143237. The reversal of 31013143234 is 43234131013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31013143199 and 31013143208.

It is not an unprimeable number, because it can be changed into a prime (31013143237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75274414 + ... + 75274825.

It is an arithmetic number, because the mean of its divisors is an integer number (5871420360).

Almost surely, 2^31013143234 is an apocalyptic number.

31013143234 is a deficient number, since it is larger than the sum of its proper divisors (15958219646).

31013143234 is a wasteful number, since it uses less digits than its factorization.

31013143234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150549344.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31013143234 its reverse (43234131013), we get a palindrome (74247274247).

The spelling of 31013143234 in words is "thirty-one billion, thirteen million, one hundred forty-three thousand, two hundred thirty-four".