431023303400 has 48 divisors (see below), whose sum is σ = 1002218032140. Its totient is φ = 172394035200.

The previous prime is 431023303393. The next prime is 431023303409. The reversal of 431023303400 is 4303320134.

It can be written as a sum of positive squares in 6 ways, for example, as 18209343364 + 412813960036 = 134942^2 + 642506^2 .

It is not an unprimeable number, because it can be changed into a prime (431023303409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2317880 + ... + 2496920.

Almost surely, 2^431023303400 is an apocalyptic number.

431023303400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

431023303400 is an abundant number, since it is smaller than the sum of its proper divisors (571194728740).

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

431023303400 is a wasteful number, since it uses less digits than its factorization.

431023303400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191094 (or 191085 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 431023303400 its reverse (4303320134), we get a palindrome (435326623534).

The spelling of 431023303400 in words is "four hundred thirty-one billion, twenty-three million, three hundred three thousand, four hundred".