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2131100202901 is a prime number
BaseRepresentation
bin11111000000101111011…
…110000111011110010101
321112201202001000012020111
4133000233132013132111
5234403443122443101
64311003001203021
7306652435562035
oct37005736073625
97481661005214
102131100202901
1175188156370a
122a5031190471
13125c6735b027
147520810b8c5
153a67c717251
hex1f02f787795

2131100202901 has 2 divisors, whose sum is σ = 2131100202902. Its totient is φ = 2131100202900.

The previous prime is 2131100202899. The next prime is 2131100202941. The reversal of 2131100202901 is 1092020011312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2109027158001 + 22073044900 = 1452249^2 + 148570^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131100202901 - 21 = 2131100202899 is a prime.

Together with 2131100202899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131100202941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065550101450 + 1065550101451.

It is an arithmetic number, because the mean of its divisors is an integer number (1065550101451).

Almost surely, 22131100202901 is an apocalyptic number.

It is an amenable number.

2131100202901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131100202901 is an equidigital number, since it uses as much as digits as its factorization.

2131100202901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 2131100202901 in words is "two trillion, one hundred thirty-one billion, one hundred million, two hundred two thousand, nine hundred one".