31324534340 has 48 divisors (see below), whose sum is σ = 72568016640. Its totient is φ = 11262746880.

The previous prime is 31324534337. The next prime is 31324534459. The reversal of 31324534340 is 4343542313.

It is a junction number, because it is equal to n+sod(n) for n = 31324534297 and 31324534306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780332 + ... + 819491.

It is an arithmetic number, because the mean of its divisors is an integer number (1511833680).

Almost surely, 2^31324534340 is an apocalyptic number.

It is an amenable number.

31324534340 is an abundant number, since it is smaller than the sum of its proper divisors (41243482300).

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

31324534340 is a wasteful number, since it uses less digits than its factorization.

31324534340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599932 (or 1599930 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

The spelling of 31324534340 in words is "thirty-one billion, three hundred twenty-four million, five hundred thirty-four thousand, three hundred forty".