2140040120969 has 2 divisors, whose sum is σ = 2140040120970. Its totient is φ = 2140040120968.

The previous prime is 2140040120923. The next prime is 2140040121031. The reversal of 2140040120969 is 9690210400412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1084670175625 + 1055369945344 = 1041475^2 + 1027312^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140040120969 - 2²⁰ = 2140039072393 is a prime.

It is a super-2 number, since 2×2140040120969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2140040125969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070020060484 + 1070020060485.

It is an arithmetic number, because the mean of its divisors is an integer number (1070020060485).

Almost surely, 2^{2140040120969} is an apocalyptic number.

It is an amenable number.

2140040120969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140040120969 is an equidigital number, since it uses as much as digits as its factorization.

2140040120969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 2140040120969 in words is "two trillion, one hundred forty billion, forty million, one hundred twenty thousand, nine hundred sixty-nine".