31213030334 has 32 divisors (see below), whose sum is σ = 48078113760. Its totient is φ = 15193170432.

The previous prime is 31213030301. The next prime is 31213030399. The reversal of 31213030334 is 43303031213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8873144 + ... + 8876660.

It is an arithmetic number, because the mean of its divisors is an integer number (1502441055).

Almost surely, 2^31213030334 is an apocalyptic number.

31213030334 is a deficient number, since it is larger than the sum of its proper divisors (16865083426).

31213030334 is a wasteful number, since it uses less digits than its factorization.

31213030334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31213030334 its reverse (43303031213), we get a palindrome (74516061547).

The spelling of 31213030334 in words is "thirty-one billion, two hundred thirteen million, thirty thousand, three hundred thirty-four".