431401120529 has 2 divisors, whose sum is σ = 431401120530. Its totient is φ = 431401120528.

The previous prime is 431401120481. The next prime is 431401120531. The reversal of 431401120529 is 925021104134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412482493504 + 18918627025 = 642248^2 + 137545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431401120529 is a prime.

It is a super-2 number, since 2×431401120529² (a number of 24 digits) contains 22 as substring.

Together with 431401120531, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 431401120495 and 431401120504.

It is not a weakly prime, because it can be changed into another prime (431401120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215700560264 + 215700560265.

It is an arithmetic number, because the mean of its divisors is an integer number (215700560265).

Almost surely, 2^431401120529 is an apocalyptic number.

It is an amenable number.

431401120529 is a deficient number, since it is larger than the sum of its proper divisors (1).

431401120529 is an equidigital number, since it uses as much as digits as its factorization.

431401120529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 431401120529 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty thousand, five hundred twenty-nine".