42031120969 has 2 divisors, whose sum is σ = 42031120970. Its totient is φ = 42031120968.

The previous prime is 42031120961. The next prime is 42031121039. The reversal of 42031120969 is 96902113024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26434857744 + 15596263225 = 162588^2 + 124885^2 .

It is a cyclic number.

It is not a de Polignac number, because 42031120969 - 2³ = 42031120961 is a prime.

It is a super-2 number, since 2×42031120969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42031120961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015560484 + 21015560485.

It is an arithmetic number, because the mean of its divisors is an integer number (21015560485).

Almost surely, 2^42031120969 is an apocalyptic number.

It is an amenable number.

42031120969 is a deficient number, since it is larger than the sum of its proper divisors (1).

42031120969 is an equidigital number, since it uses as much as digits as its factorization.

42031120969 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 42031120969 in words is "forty-two billion, thirty-one million, one hundred twenty thousand, nine hundred sixty-nine".