131403032209921 has 2 divisors, whose sum is σ = 131403032209922. Its totient is φ = 131403032209920.

The previous prime is 131403032209859. The next prime is 131403032210011. The reversal of 131403032209921 is 129902230304131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130308160867600 + 1094871342321 = 11415260^2 + 1046361^2 .

It is a cyclic number.

It is not a de Polignac number, because 131403032209921 - 2¹¹ = 131403032207873 is a prime.

It is not a weakly prime, because it can be changed into another prime (131403032209021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701516104960 + 65701516104961.

It is an arithmetic number, because the mean of its divisors is an integer number (65701516104961).

Almost surely, 2^{131403032209921} is an apocalyptic number.

It is an amenable number.

131403032209921 is a deficient number, since it is larger than the sum of its proper divisors (1).

131403032209921 is an equidigital number, since it uses as much as digits as its factorization.

131403032209921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 131403032209921 in words is "one hundred thirty-one trillion, four hundred three billion, thirty-two million, two hundred nine thousand, nine hundred twenty-one".