130310021031 has 4 divisors (see below), whose sum is σ = 173746694712. Its totient is φ = 86873347352.

The previous prime is 130310021003. The next prime is 130310021081. The reversal of 130310021031 is 130120013031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130120013031 = 3 ⋅43373337677.

It is a cyclic number.

It is not a de Polignac number, because 130310021031 - 2¹³ = 130310012839 is a prime.

It is a super-2 number, since 2×130310021031² (a number of 23 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 130310021031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130310021081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21718336836 + ... + 21718336841.

It is an arithmetic number, because the mean of its divisors is an integer number (43436673678).

Almost surely, 2^130310021031 is an apocalyptic number.

130310021031 is a deficient number, since it is larger than the sum of its proper divisors (43436673681).

130310021031 is an equidigital number, since it uses as much as digits as its factorization.

130310021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43436673680.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 130310021031 its reverse (130120013031), we get a palindrome (260430034062).

The spelling of 130310021031 in words is "one hundred thirty billion, three hundred ten million, twenty-one thousand, thirty-one".