31234234432 has 28 divisors (see below), whose sum is σ = 62057150460. Its totient is φ = 15597787136.

The previous prime is 31234234403. The next prime is 31234234433. The reversal of 31234234432 is 23443243213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22005942336 + 9228292096 = 148344^2 + 96064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31234234394 and 31234234403.

It is not an unprimeable number, because it can be changed into a prime (31234234433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249853 + ... + 353404.

Almost surely, 2^31234234432 is an apocalyptic number.

31234234432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31234234432 is a deficient number, since it is larger than the sum of its proper divisors (30822916028).

31234234432 is an equidigital number, since it uses as much as digits as its factorization.

31234234432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604078 (or 604068 counting only the distinct ones).

The product of its digits is 41472, while the sum is 31.

Adding to 31234234432 its reverse (23443243213), we get a palindrome (54677477645).

The spelling of 31234234432 in words is "thirty-one billion, two hundred thirty-four million, two hundred thirty-four thousand, four hundred thirty-two".