231404421430 has 64 divisors (see below), whose sum is σ = 542805701760. Its totient is φ = 68927698944.

The previous prime is 231404421397. The next prime is 231404421509. The reversal of 231404421430 is 34124404132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7463665 + ... + 7494604.

It is an arithmetic number, because the mean of its divisors is an integer number (8481339090).

Almost surely, 2^231404421430 is an apocalyptic number.

231404421430 is an abundant number, since it is smaller than the sum of its proper divisors (311401280330).

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

231404421430 is a wasteful number, since it uses less digits than its factorization.

231404421430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958313.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 231404421430 its reverse (34124404132), we get a palindrome (265528825562).

The spelling of 231404421430 in words is "two hundred thirty-one billion, four hundred four million, four hundred twenty-one thousand, four hundred thirty".