70000007031 has 16 divisors (see below), whose sum is σ = 103737066720. Its totient is φ = 46651662720.

The previous prime is 70000007003. The next prime is 70000007107. The reversal of 70000007031 is 13070000007.

It is not a de Polignac number, because 70000007031 - 2¹⁰ = 70000006007 is a prime.

It is a super-2 number, since 2×70000007031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70000006995 and 70000007013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70000207031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331080 + ... + 499613.

It is an arithmetic number, because the mean of its divisors is an integer number (6483566670).

Almost surely, 2^70000007031 is an apocalyptic number.

70000007031 is a deficient number, since it is larger than the sum of its proper divisors (33737059689).

70000007031 is a wasteful number, since it uses less digits than its factorization.

70000007031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833823 (or 833817 counting only the distinct ones).

The product of its (nonzero) digits is 147, while the sum is 18.

Adding to 70000007031 its reverse (13070000007), we get a palindrome (83070007038).

The spelling of 70000007031 in words is "seventy billion, seven thousand, thirty-one".