130031210121020 has 24 divisors (see below), whose sum is σ = 294070582889664. Its totient is φ = 48011523736896.

The previous prime is 130031210121019. The next prime is 130031210121047. The reversal of 130031210121020 is 20121012130031.

It is a self number, because there is not a number n which added to its sum of digits gives 130031210121020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250060019204 + ... + 250060019723.

It is an arithmetic number, because the mean of its divisors is an integer number (12252940953736).

Almost surely, 2^{130031210121020} is an apocalyptic number.

130031210121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130031210121020 is an abundant number, since it is smaller than the sum of its proper divisors (164039372768644).

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

130031210121020 is a wasteful number, since it uses less digits than its factorization.

130031210121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500120038949 (or 500120038947 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 130031210121020 its reverse (20121012130031), we get a palindrome (150152222251051).

The spelling of 130031210121020 in words is "one hundred thirty trillion, thirty-one billion, two hundred ten million, one hundred twenty-one thousand, twenty".