131021220413052 has 48 divisors (see below), whose sum is σ = 339686951294880. Its totient is φ = 43673443680384.

The previous prime is 131021220412997. The next prime is 131021220413053. The reversal of 131021220413052 is 250314022120131.

It is a happy number.

131021220413052 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 21 + 220 + 413 + 0 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021220413053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12163288 + ... + 20248160.

It is an arithmetic number, because the mean of its divisors is an integer number (7076811485310).

Almost surely, 2^{131021220413052} is an apocalyptic number.

131021220413052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131021220413052 is an abundant number, since it is smaller than the sum of its proper divisors (208665730881828).

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

131021220413052 is a wasteful number, since it uses less digits than its factorization.

131021220413052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234939 (or 8234931 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 131021220413052 its reverse (250314022120131), we get a palindrome (381335242533183).

The spelling of 131021220413052 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred twenty million, four hundred thirteen thousand, fifty-two".