32320313731 has 2 divisors, whose sum is σ = 32320313732. Its totient is φ = 32320313730.

The previous prime is 32320313723. The next prime is 32320313743. The reversal of 32320313731 is 13731302323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32320313731 - 2³ = 32320313723 is a prime.

It is a super-2 number, since 2×32320313731² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32320313731.

It is not a weakly prime, because it can be changed into another prime (32320310731) by changing a digit.

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 as a sum of consecutive naturals, namely, 16160156865 + 16160156866.

It is an arithmetic number, because the mean of its divisors is an integer number (16160156866).

Almost surely, 2^32320313731 is an apocalyptic number.

32320313731 is a deficient number, since it is larger than the sum of its proper divisors (1).

32320313731 is an equidigital number, since it uses as much as digits as its factorization.

32320313731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 28.

The spelling of 32320313731 in words is "thirty-two billion, three hundred twenty million, three hundred thirteen thousand, seven hundred thirty-one".