431430400133421 has 64 divisors (see below), whose sum is σ = 641347075031040. Its totient is φ = 256279608000000.

The previous prime is 431430400133393. The next prime is 431430400133437. The reversal of 431430400133421 is 124331004034134.

It is not a de Polignac number, because 431430400133421 - 2⁹ = 431430400132909 is a prime.

It is a super-2 number, since 2×431430400133421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431430400183421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57044260 + ... + 64163138.

It is an arithmetic number, because the mean of its divisors is an integer number (10021048047360).

Almost surely, 2^{431430400133421} is an apocalyptic number.

431430400133421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

431430400133421 is a deficient number, since it is larger than the sum of its proper divisors (209916674897619).

431430400133421 is a wasteful number, since it uses less digits than its factorization.

431430400133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7119338.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 431430400133421 its reverse (124331004034134), we get a palindrome (555761404167555).

The spelling of 431430400133421 in words is "four hundred thirty-one trillion, four hundred thirty billion, four hundred million, one hundred thirty-three thousand, four hundred twenty-one".