131413101022421 has 2 divisors, whose sum is σ = 131413101022422. Its totient is φ = 131413101022420.

The previous prime is 131413101022417. The next prime is 131413101022451. The reversal of 131413101022421 is 124220101314131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111605385279025 + 19807715743396 = 10564345^2 + 4450586^2 .

It is a cyclic number.

It is not a de Polignac number, because 131413101022421 - 2² = 131413101022417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131413101022451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65706550511210 + 65706550511211.

It is an arithmetic number, because the mean of its divisors is an integer number (65706550511211).

Almost surely, 2^{131413101022421} is an apocalyptic number.

It is an amenable number.

131413101022421 is a deficient number, since it is larger than the sum of its proper divisors (1).

131413101022421 is an equidigital number, since it uses as much as digits as its factorization.

131413101022421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 131413101022421 its reverse (124220101314131), we get a palindrome (255633202336552).

The spelling of 131413101022421 in words is "one hundred thirty-one trillion, four hundred thirteen billion, one hundred one million, twenty-two thousand, four hundred twenty-one".