31234031420 has 24 divisors (see below), whose sum is σ = 66987031104. Its totient is φ = 12227790656.

The previous prime is 31234031401. The next prime is 31234031461. The reversal of 31234031420 is 2413043213.

It is a congruent number.

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, 16612907 + ... + 16614786.

It is an arithmetic number, because the mean of its divisors is an integer number (2791126296).

Almost surely, 2^31234031420 is an apocalyptic number.

It is an amenable number.

31234031420 is an abundant number, since it is smaller than the sum of its proper divisors (35752999684).

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

31234031420 is a wasteful number, since it uses less digits than its factorization.

31234031420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33227749 (or 33227747 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31234031420 its reverse (2413043213), we get a palindrome (33647074633).

The spelling of 31234031420 in words is "thirty-one billion, two hundred thirty-four million, thirty-one thousand, four hundred twenty".