431321345400 has 96 divisors (see below), whose sum is σ = 1458650390400. Its totient is φ = 104562748800.

The previous prime is 431321345359. The next prime is 431321345489. The reversal of 431321345400 is 4543123134.

It is a super-2 number, since 2×431321345400² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32669260 + ... + 32682459.

It is an arithmetic number, because the mean of its divisors is an integer number (15194274900).

Almost surely, 2^431321345400 is an apocalyptic number.

431321345400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431321345400 is an abundant number, since it is smaller than the sum of its proper divisors (1027329045000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431321345400 is a wasteful number, since it uses less digits than its factorization.

431321345400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65351749 (or 65351740 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 431321345400 its reverse (4543123134), we get a palindrome (435864468534).

The spelling of 431321345400 in words is "four hundred thirty-one billion, three hundred twenty-one million, three hundred forty-five thousand, four hundred".