201000010209931 has 2 divisors, whose sum is σ = 201000010209932. Its totient is φ = 201000010209930.

The previous prime is 201000010209923. The next prime is 201000010209997. The reversal of 201000010209931 is 139902010000102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201000010209931 - 2³ = 201000010209923 is a prime.

It is a super-2 number, since 2×201000010209931² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201000010209931.

It is not a weakly prime, because it can be changed into another prime (201000010209731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500005104965 + 100500005104966.

It is an arithmetic number, because the mean of its divisors is an integer number (100500005104966).

Almost surely, 2^{201000010209931} is an apocalyptic number.

201000010209931 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000010209931 is an equidigital number, since it uses as much as digits as its factorization.

201000010209931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 201000010209931 in words is "two hundred one trillion, ten million, two hundred nine thousand, nine hundred thirty-one".