31023200121983 has 2 divisors, whose sum is σ = 31023200121984. Its totient is φ = 31023200121982.

The previous prime is 31023200121973. The next prime is 31023200122007. The reversal of 31023200121983 is 38912100232013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31023200121983 - 2³⁰ = 31022126380159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31023200121913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511600060991 + 15511600060992.

It is an arithmetic number, because the mean of its divisors is an integer number (15511600060992).

Almost surely, 2^{31023200121983} is an apocalyptic number.

31023200121983 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023200121983 is an equidigital number, since it uses as much as digits as its factorization.

31023200121983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

Adding to 31023200121983 its reverse (38912100232013), we get a palindrome (69935300353996).

The spelling of 31023200121983 in words is "thirty-one trillion, twenty-three billion, two hundred million, one hundred twenty-one thousand, nine hundred eighty-three".