130231232312220 has 144 divisors (see below), whose sum is σ = 425428783651872. Its totient is φ = 32056409479680.

The previous prime is 130231232312197. The next prime is 130231232312227. The reversal of 130231232312220 is 22213232132031.

130231232312220 is a `hidden beast` number, since 1 + 3 + 0 + 2 + 3 + 123 + 2 + 312 + 220 = 666.

It is a super-2 number, since 2×130231232312220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130231232312227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159210475 + ... + 160026365.

It is an arithmetic number, because the mean of its divisors is an integer number (2954366553138).

Almost surely, 2^{130231232312220} is an apocalyptic number.

130231232312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130231232312220 is an abundant number, since it is smaller than the sum of its proper divisors (295197551339652).

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

130231232312220 is a wasteful number, since it uses less digits than its factorization.

130231232312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884132 (or 884127 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 130231232312220 its reverse (22213232132031), we get a palindrome (152444464444251).

The spelling of 130231232312220 in words is "one hundred thirty trillion, two hundred thirty-one billion, two hundred thirty-two million, three hundred twelve thousand, two hundred twenty".