431204651125361 has 2 divisors, whose sum is σ = 431204651125362. Its totient is φ = 431204651125360.

The previous prime is 431204651125357. The next prime is 431204651125487. The reversal of 431204651125361 is 163521156402134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404776374093025 + 26428277032336 = 20119055^2 + 5140844^2 .

It is a cyclic number.

It is not a de Polignac number, because 431204651125361 - 2² = 431204651125357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (431204651125321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215602325562680 + 215602325562681.

It is an arithmetic number, because the mean of its divisors is an integer number (215602325562681).

Almost surely, 2^{431204651125361} is an apocalyptic number.

It is an amenable number.

431204651125361 is a deficient number, since it is larger than the sum of its proper divisors (1).

431204651125361 is an equidigital number, since it uses as much as digits as its factorization.

431204651125361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 431204651125361 in words is "four hundred thirty-one trillion, two hundred four billion, six hundred fifty-one million, one hundred twenty-five thousand, three hundred sixty-one".