70031012131 has 2 divisors, whose sum is σ = 70031012132. Its totient is φ = 70031012130.

The previous prime is 70031012071. The next prime is 70031012153. The reversal of 70031012131 is 13121013007.

It is a strong prime.

It is an emirp because it is prime and its reverse (13121013007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70031012131 - 2¹¹ = 70031010083 is a prime.

It is a super-2 number, since 2×70031012131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70031012099 and 70031012108.

It is not a weakly prime, because it can be changed into another prime (70031012731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35015506065 + 35015506066.

It is an arithmetic number, because the mean of its divisors is an integer number (35015506066).

Almost surely, 2^70031012131 is an apocalyptic number.

70031012131 is a deficient number, since it is larger than the sum of its proper divisors (1).

70031012131 is an equidigital number, since it uses as much as digits as its factorization.

70031012131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

Adding to 70031012131 its reverse (13121013007), we get a palindrome (83152025138).

The spelling of 70031012131 in words is "seventy billion, thirty-one million, twelve thousand, one hundred thirty-one".