130220031 has 8 divisors (see below), whose sum is σ = 173741184. Its totient is φ = 86756120.

The previous prime is 130220029. The next prime is 130220047. The reversal of 130220031 is 130022031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130220031 - 2¹ = 130220029 is a prime.

It is a super-2 number, since 2×130220031² = 33914512947281922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130219989 and 130220016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130220071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8685 + ... + 18326.

It is an arithmetic number, because the mean of its divisors is an integer number (21717648).

Almost surely, 2^130220031 is an apocalyptic number.

130220031 is a deficient number, since it is larger than the sum of its proper divisors (43521153).

130220031 is a wasteful number, since it uses less digits than its factorization.

130220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28621.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130220031 is about 11411.3991692518. The cubic root of 130220031 is about 506.8653439919.

Adding to 130220031 its reverse (130022031), we get a palindrome (260242062).

The spelling of 130220031 in words is "one hundred thirty million, two hundred twenty thousand, thirty-one".