431322130381 has 2 divisors, whose sum is σ = 431322130382. Its totient is φ = 431322130380.

The previous prime is 431322130333. The next prime is 431322130387. The reversal of 431322130381 is 183031223134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361271921481 + 70050208900 = 601059^2 + 264670^2 .

It is a cyclic number.

It is not a de Polignac number, because 431322130381 - 2⁹ = 431322129869 is a prime.

It is a super-2 number, since 2×431322130381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431322130387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215661065190 + 215661065191.

It is an arithmetic number, because the mean of its divisors is an integer number (215661065191).

Almost surely, 2^431322130381 is an apocalyptic number.

It is an amenable number.

431322130381 is a deficient number, since it is larger than the sum of its proper divisors (1).

431322130381 is an equidigital number, since it uses as much as digits as its factorization.

431322130381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 431322130381 in words is "four hundred thirty-one billion, three hundred twenty-two million, one hundred thirty thousand, three hundred eighty-one".