2131035365999 has 2 divisors, whose sum is σ = 2131035366000. Its totient is φ = 2131035365998.

The previous prime is 2131035365971. The next prime is 2131035366007. The reversal of 2131035365999 is 9995635301312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131035365999 is a prime.

It is a super-2 number, since 2×2131035365999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131035365929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065517682999 + 1065517683000.

It is an arithmetic number, because the mean of its divisors is an integer number (1065517683000).

Almost surely, 2^{2131035365999} is an apocalyptic number.

2131035365999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131035365999 is an equidigital number, since it uses as much as digits as its factorization.

2131035365999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5904900, while the sum is 56.

The spelling of 2131035365999 in words is "two trillion, one hundred thirty-one billion, thirty-five million, three hundred sixty-five thousand, nine hundred ninety-nine".