1301000031 has 12 divisors (see below), whose sum is σ = 1930012552. Its totient is φ = 843891696.

The previous prime is 1300999993. The next prime is 1301000039. The reversal of 1301000031 is 1300001031.

It is not a de Polignac number, because 1301000031 - 2¹⁵ = 1300967263 is a prime.

It is a super-2 number, since 2×1301000031² = 3385202161324001922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1300999977 and 1301000022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301000039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1953121 + ... + 1953786.

Almost surely, 2^1301000031 is an apocalyptic number.

1301000031 is a deficient number, since it is larger than the sum of its proper divisors (629012521).

1301000031 is a wasteful number, since it uses less digits than its factorization.

1301000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906950 (or 3906947 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 1301000031 is about 36069.3780234703. The cubic root of 1301000031 is about 1091.6726643365.

Adding to 1301000031 its reverse (1300001031), we get a palindrome (2601001062).

The spelling of 1301000031 in words is "one billion, three hundred one million, thirty-one", and thus it is an aban number.