431430143381 has 2 divisors, whose sum is σ = 431430143382. Its totient is φ = 431430143380.

The previous prime is 431430143269. The next prime is 431430143399. The reversal of 431430143381 is 183341034134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222755680900 + 208674462481 = 471970^2 + 456809^2 .

It is a cyclic number.

It is not a de Polignac number, because 431430143381 - 2¹⁸ = 431429881237 is a prime.

It is a super-2 number, since 2×431430143381² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431430143581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215715071690 + 215715071691.

It is an arithmetic number, because the mean of its divisors is an integer number (215715071691).

Almost surely, 2^431430143381 is an apocalyptic number.

It is an amenable number.

431430143381 is a deficient number, since it is larger than the sum of its proper divisors (1).

431430143381 is an equidigital number, since it uses as much as digits as its factorization.

431430143381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 431430143381 in words is "four hundred thirty-one billion, four hundred thirty million, one hundred forty-three thousand, three hundred eighty-one".