32311020397 has 16 divisors (see below), whose sum is σ = 33639693120. Its totient is φ = 31012958592.

The previous prime is 32311020389. The next prime is 32311020421. The reversal of 32311020397 is 79302011323.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 32311020397 - 2³ = 32311020389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32311029397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597903 + ... + 649699.

It is an arithmetic number, because the mean of its divisors is an integer number (2102480820).

Almost surely, 2^32311020397 is an apocalyptic number.

It is an amenable number.

32311020397 is a deficient number, since it is larger than the sum of its proper divisors (1328672723).

32311020397 is a wasteful number, since it uses less digits than its factorization.

32311020397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52092.

The product of its (nonzero) digits is 6804, while the sum is 31.

The spelling of 32311020397 in words is "thirty-two billion, three hundred eleven million, twenty thousand, three hundred ninety-seven".