131012224121020 has 24 divisors (see below), whose sum is σ = 300137095259568. Its totient is φ = 47640808771200.

The previous prime is 131012224121003. The next prime is 131012224121059. The reversal of 131012224121020 is 20121422210131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 131012224120982 and 131012224121000.

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, 297755054601 + ... + 297755055040.

It is an arithmetic number, because the mean of its divisors is an integer number (12505712302482).

Almost surely, 2^{131012224121020} is an apocalyptic number.

131012224121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012224121020 is an abundant number, since it is smaller than the sum of its proper divisors (169124871138548).

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

131012224121020 is a wasteful number, since it uses less digits than its factorization.

131012224121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595510109661 (or 595510109659 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 131012224121020 its reverse (20121422210131), we get a palindrome (151133646331151).

The spelling of 131012224121020 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-four million, one hundred twenty-one thousand, twenty".