402000202020973 has 2 divisors, whose sum is σ = 402000202020974. Its totient is φ = 402000202020972.

The previous prime is 402000202020871. The next prime is 402000202021049. The reversal of 402000202020973 is 379020202000204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393181428412809 + 8818773608164 = 19828803^2 + 2969642^2 .

It is a cyclic number.

It is not a de Polignac number, because 402000202020973 - 2³³ = 401991612086381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402000202024973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201000101010486 + 201000101010487.

It is an arithmetic number, because the mean of its divisors is an integer number (201000101010487).

Almost surely, 2^{402000202020973} is an apocalyptic number.

It is an amenable number.

402000202020973 is a deficient number, since it is larger than the sum of its proper divisors (1).

402000202020973 is an equidigital number, since it uses as much as digits as its factorization.

402000202020973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 402000202020973 in words is "four hundred two trillion, two hundred two million, twenty thousand, nine hundred seventy-three".