31001000130 has 64 divisors (see below), whose sum is σ = 82894855680. Its totient is φ = 8244381312.

The previous prime is 31001000119. The next prime is 31001000141. The reversal of 31001000130 is 3100010013.

It is an interprime number because it is at equal distance from previous prime (31001000119) and next prime (31001000141).

It is a super-2 number, since 2×31001000130² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57339 + ... + 255518.

It is an arithmetic number, because the mean of its divisors is an integer number (1295232120).

Almost surely, 2^31001000130 is an apocalyptic number.

31001000130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31001000130 is an abundant number, since it is smaller than the sum of its proper divisors (51893855550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31001000130 is a wasteful number, since it uses less digits than its factorization.

31001000130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313240 (or 313234 counting only the distinct ones).

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

Adding to 31001000130 its reverse (3100010013), we get a palindrome (34101010143).

The spelling of 31001000130 in words is "thirty-one billion, one million, one hundred thirty", and thus it is an aban number.