130220021031 has 8 divisors (see below), whose sum is σ = 173658946944. Its totient is φ = 86797221240.

The previous prime is 130220021017. The next prime is 130220021033. The reversal of 130220021031 is 130120022031.

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

It is not a de Polignac number, because 130220021031 - 2²⁹ = 129683150119 is a prime.

It is a super-2 number, since 2×130220021031² (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 130220021031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130220021033) 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, 4012675 + ... + 4044996.

It is an arithmetic number, because the mean of its divisors is an integer number (21707368368).

Almost surely, 2^130220021031 is an apocalyptic number.

130220021031 is a deficient number, since it is larger than the sum of its proper divisors (43438925913).

130220021031 is an equidigital number, since it uses as much as digits as its factorization.

130220021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063061.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 130220021031 its reverse (130120022031), we get a palindrome (260340043062).

It can be divided in two parts, 1302200 and 21031, that added together give a palindrome (1323231).

The spelling of 130220021031 in words is "one hundred thirty billion, two hundred twenty million, twenty-one thousand, thirty-one".