31643711324 has 12 divisors (see below), whose sum is σ = 55430109504. Its totient is φ = 15806537184.

The previous prime is 31643711279. The next prime is 31643711371. The reversal of 31643711324 is 42311734613.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824972 + ... + 3833235.

It is an arithmetic number, because the mean of its divisors is an integer number (4619175792).

Almost surely, 2^31643711324 is an apocalyptic number.

It is an amenable number.

31643711324 is a deficient number, since it is larger than the sum of its proper divisors (23786398180).

31643711324 is a wasteful number, since it uses less digits than its factorization.

31643711324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7659244 (or 7659242 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The spelling of 31643711324 in words is "thirty-one billion, six hundred forty-three million, seven hundred eleven thousand, three hundred twenty-four".