70152031531 has 2 divisors, whose sum is σ = 70152031532. Its totient is φ = 70152031530.

The previous prime is 70152031507. The next prime is 70152031603. The reversal of 70152031531 is 13513025107.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70152031531 - 2¹³ = 70152023339 is a prime.

It is a super-2 number, since 2×70152031531² (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 70152031531.

It is not a weakly prime, because it can be changed into another prime (70152931531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35076015765 + 35076015766.

It is an arithmetic number, because the mean of its divisors is an integer number (35076015766).

Almost surely, 2^70152031531 is an apocalyptic number.

70152031531 is a deficient number, since it is larger than the sum of its proper divisors (1).

70152031531 is an equidigital number, since it uses as much as digits as its factorization.

70152031531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 28.

Adding to 70152031531 its reverse (13513025107), we get a palindrome (83665056638).

The spelling of 70152031531 in words is "seventy billion, one hundred fifty-two million, thirty-one thousand, five hundred thirty-one".