31232020455329 has 2 divisors, whose sum is σ = 31232020455330. Its totient is φ = 31232020455328.

The previous prime is 31232020455289. The next prime is 31232020455367. The reversal of 31232020455329 is 92355402023213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21797908205329 + 9434112250000 = 4668823^2 + 3071500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31232020455329 is a prime.

It is not a weakly prime, because it can be changed into another prime (31232020455379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616010227664 + 15616010227665.

It is an arithmetic number, because the mean of its divisors is an integer number (15616010227665).

Almost surely, 2^{31232020455329} is an apocalyptic number.

It is an amenable number.

31232020455329 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232020455329 is an equidigital number, since it uses as much as digits as its factorization.

31232020455329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 31232020455329 in words is "thirty-one trillion, two hundred thirty-two billion, twenty million, four hundred fifty-five thousand, three hundred twenty-nine".