131021111300121 has 48 divisors (see below), whose sum is σ = 225832953265920. Its totient is φ = 71569513889280.

The previous prime is 131021111300089. The next prime is 131021111300141. The reversal of 131021111300121 is 121003111120131.

131021111300121 is a `hidden beast` number, since 1 + 31 + 0 + 211 + 1 + 1 + 300 + 121 = 666.

It is not a de Polignac number, because 131021111300121 - 2⁵ = 131021111300089 is a prime.

It is a super-2 number, since 2×131021111300121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131021111300094 and 131021111300103.

It is not an unprimeable number, because it can be changed into a prime (131021111300141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25767300 + ... + 30430181.

It is an arithmetic number, because the mean of its divisors is an integer number (4704853193040).

Almost surely, 2^{131021111300121} is an apocalyptic number.

It is an amenable number.

131021111300121 is a deficient number, since it is larger than the sum of its proper divisors (94811841965799).

131021111300121 is a wasteful number, since it uses less digits than its factorization.

131021111300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56199126 (or 56199123 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 131021111300121 its reverse (121003111120131), we get a palindrome (252024222420252).

The spelling of 131021111300121 in words is "one hundred thirty-one trillion, twenty-one billion, one hundred eleven million, three hundred thousand, one hundred twenty-one".