31324121402 has 16 divisors (see below), whose sum is σ = 53704563072. Its totient is φ = 13423106160.

The previous prime is 31324121357. The next prime is 31324121417. The reversal of 31324121402 is 20412142313.

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, 6683 + ... + 250385.

It is an arithmetic number, because the mean of its divisors is an integer number (3356535192).

Almost surely, 2^31324121402 is an apocalyptic number.

31324121402 is a deficient number, since it is larger than the sum of its proper divisors (22380441670).

31324121402 is a wasteful number, since it uses less digits than its factorization.

31324121402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252893.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31324121402 its reverse (20412142313), we get a palindrome (51736263715).

The spelling of 31324121402 in words is "thirty-one billion, three hundred twenty-four million, one hundred twenty-one thousand, four hundred two".