31420023234 has 32 divisors (see below), whose sum is σ = 62956175616. Its totient is φ = 10454008320.

The previous prime is 31420023223. The next prime is 31420023263. The reversal of 31420023234 is 43232002413.

It is a Curzon 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, 12838999 + ... + 12841445.

It is an arithmetic number, because the mean of its divisors is an integer number (1967380488).

Almost surely, 2^31420023234 is an apocalyptic number.

31420023234 is an abundant number, since it is smaller than the sum of its proper divisors (31536152382).

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

31420023234 is a wasteful number, since it uses less digits than its factorization.

31420023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31420023234 its reverse (43232002413), we get a palindrome (74652025647).

The spelling of 31420023234 in words is "thirty-one billion, four hundred twenty million, twenty-three thousand, two hundred thirty-four".