201231002122993 has 2 divisors, whose sum is σ = 201231002122994. Its totient is φ = 201231002122992.

The previous prime is 201231002122979. The next prime is 201231002123023. The reversal of 201231002122993 is 399221200132102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191028554830864 + 10202447292129 = 13821308^2 + 3194127^2 .

It is a cyclic number.

It is not a de Polignac number, because 201231002122993 - 2²⁵ = 201230968568561 is a prime.

It is not a weakly prime, because it can be changed into another prime (201231032122993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615501061496 + 100615501061497.

It is an arithmetic number, because the mean of its divisors is an integer number (100615501061497).

Almost surely, 2^{201231002122993} is an apocalyptic number.

It is an amenable number.

201231002122993 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231002122993 is an equidigital number, since it uses as much as digits as its factorization.

201231002122993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 201231002122993 in words is "two hundred one trillion, two hundred thirty-one billion, two million, one hundred twenty-two thousand, nine hundred ninety-three".