405130523431 has 2 divisors, whose sum is σ = 405130523432. Its totient is φ = 405130523430.

The previous prime is 405130523429. The next prime is 405130523507. The reversal of 405130523431 is 134325031504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405130523431 - 2¹ = 405130523429 is a prime.

It is a super-2 number, since 2×405130523431² (a number of 24 digits) contains 22 as substring.

Together with 405130523429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 405130523393 and 405130523402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405130524431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202565261715 + 202565261716.

It is an arithmetic number, because the mean of its divisors is an integer number (202565261716).

Almost surely, 2^405130523431 is an apocalyptic number.

405130523431 is a deficient number, since it is larger than the sum of its proper divisors (1).

405130523431 is an equidigital number, since it uses as much as digits as its factorization.

405130523431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 405130523431 its reverse (134325031504), we get a palindrome (539455554935).

The spelling of 405130523431 in words is "four hundred five billion, one hundred thirty million, five hundred twenty-three thousand, four hundred thirty-one".