70017023431 has 2 divisors, whose sum is σ = 70017023432. Its totient is φ = 70017023430.

The previous prime is 70017023369. The next prime is 70017023507. The reversal of 70017023431 is 13432071007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70017023431 - 2²³ = 70008634823 is a prime.

It is a super-2 number, since 2×70017023431² (a number of 22 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 70017023431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70017023231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35008511715 + 35008511716.

It is an arithmetic number, because the mean of its divisors is an integer number (35008511716).

Almost surely, 2^70017023431 is an apocalyptic number.

70017023431 is a deficient number, since it is larger than the sum of its proper divisors (1).

70017023431 is an equidigital number, since it uses as much as digits as its factorization.

70017023431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

Adding to 70017023431 its reverse (13432071007), we get a palindrome (83449094438).

The spelling of 70017023431 in words is "seventy billion, seventeen million, twenty-three thousand, four hundred thirty-one".