131020230322100 has 108 divisors (see below), whose sum is σ = 342931843394784. Its totient is φ = 42556946909760.

The previous prime is 131020230322099. The next prime is 131020230322103. The reversal of 131020230322100 is 1223032020131.

It is a super-2 number, since 2×131020230322100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020230322103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 258987962 + ... + 259493361.

It is an arithmetic number, because the mean of its divisors is an integer number (3175294846248).

Almost surely, 2^{131020230322100} is an apocalyptic number.

131020230322100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131020230322100 is an abundant number, since it is smaller than the sum of its proper divisors (211911613072684).

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

131020230322100 is a wasteful number, since it uses less digits than its factorization.

131020230322100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518481382 (or 518481356 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131020230322100 its reverse (1223032020131), we get a palindrome (132243262342231).

The spelling of 131020230322100 in words is "one hundred thirty-one trillion, twenty billion, two hundred thirty million, three hundred twenty-two thousand, one hundred".