31214424120 has 128 divisors (see below), whose sum is σ = 104532215040. Its totient is φ = 7391139840.

The previous prime is 31214424107. The next prime is 31214424121. The reversal of 31214424120 is 2142441213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214424121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218209 + ... + 331728.

It is an arithmetic number, because the mean of its divisors is an integer number (816657930).

Almost surely, 2^31214424120 is an apocalyptic number.

31214424120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31214424120 is an abundant number, since it is smaller than the sum of its proper divisors (73317790920).

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

31214424120 is a wasteful number, since it uses less digits than its factorization.

31214424120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550005 (or 550001 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31214424120 its reverse (2142441213), we get a palindrome (33356865333).

The spelling of 31214424120 in words is "thirty-one billion, two hundred fourteen million, four hundred twenty-four thousand, one hundred twenty".