131045435333473 has 2 divisors, whose sum is σ = 131045435333474. Its totient is φ = 131045435333472.

The previous prime is 131045435333317. The next prime is 131045435333537. The reversal of 131045435333473 is 374333534540131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117089106675984 + 13956328657489 = 10820772^2 + 3735817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131045435333473 is a prime.

It is a super-2 number, since 2×131045435333473² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131045435337473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65522717666736 + 65522717666737.

It is an arithmetic number, because the mean of its divisors is an integer number (65522717666737).

Almost surely, 2^{131045435333473} is an apocalyptic number.

It is an amenable number.

131045435333473 is a deficient number, since it is larger than the sum of its proper divisors (1).

131045435333473 is an equidigital number, since it uses as much as digits as its factorization.

131045435333473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 49.

The spelling of 131045435333473 in words is "one hundred thirty-one trillion, forty-five billion, four hundred thirty-five million, three hundred thirty-three thousand, four hundred seventy-three".