39402123562201 has 2 divisors, whose sum is σ = 39402123562202. Its totient is φ = 39402123562200.

The previous prime is 39402123562177. The next prime is 39402123562229. The reversal of 39402123562201 is 10226532120493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36810187779600 + 2591935782601 = 6067140^2 + 1609949^2 .

It is a cyclic number.

It is not a de Polignac number, because 39402123562201 - 2²⁹ = 39401586691289 is a prime.

It is not a weakly prime, because it can be changed into another prime (39402123562271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19701061781100 + 19701061781101.

It is an arithmetic number, because the mean of its divisors is an integer number (19701061781101).

Almost surely, 2^{39402123562201} is an apocalyptic number.

It is an amenable number.

39402123562201 is a deficient number, since it is larger than the sum of its proper divisors (1).

39402123562201 is an equidigital number, since it uses as much as digits as its factorization.

39402123562201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

Adding to 39402123562201 its reverse (10226532120493), we get a palindrome (49628655682694).

The spelling of 39402123562201 in words is "thirty-nine trillion, four hundred two billion, one hundred twenty-three million, five hundred sixty-two thousand, two hundred one".