131040103021 has 2 divisors, whose sum is σ = 131040103022. Its totient is φ = 131040103020.

The previous prime is 131040103003. The next prime is 131040103027. The reversal of 131040103021 is 120301040131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67327275625 + 63712827396 = 259475^2 + 252414^2 .

It is a cyclic number.

It is not a de Polignac number, because 131040103021 - 2⁹ = 131040102509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131040102986 and 131040103004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131040103027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65520051510 + 65520051511.

It is an arithmetic number, because the mean of its divisors is an integer number (65520051511).

Almost surely, 2^131040103021 is an apocalyptic number.

It is an amenable number.

131040103021 is a deficient number, since it is larger than the sum of its proper divisors (1).

131040103021 is an equidigital number, since it uses as much as digits as its factorization.

131040103021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131040103021 its reverse (120301040131), we get a palindrome (251341143152).

The spelling of 131040103021 in words is "one hundred thirty-one billion, forty million, one hundred three thousand, twenty-one".