131012201100020 has 48 divisors (see below), whose sum is σ = 275470223027328. Its totient is φ = 52339246619520.

The previous prime is 131012201099987. The next prime is 131012201100023. The reversal of 131012201100020 is 20001102210131.

It is a junction number, because it is equal to n+sod(n) for n = 131012201099968 and 131012201100004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012201100023) 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, 541459907 + ... + 541701813.

It is an arithmetic number, because the mean of its divisors is an integer number (5738962979736).

Almost surely, 2^{131012201100020} is an apocalyptic number.

131012201100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012201100020 is an abundant number, since it is smaller than the sum of its proper divisors (144458021927308).

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

131012201100020 is a wasteful number, since it uses less digits than its factorization.

131012201100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275720 (or 275718 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 131012201100020 its reverse (20001102210131), we get a palindrome (151013303310151).

The spelling of 131012201100020 in words is "one hundred thirty-one trillion, twelve billion, two hundred one million, one hundred thousand, twenty".