31234343232 has 112 divisors (see below), whose sum is σ = 84347182080. Its totient is φ = 10197769728.

The previous prime is 31234343213. The next prime is 31234343233. The reversal of 31234343232 is 23234343213.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 31234343232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234343233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3200953 + ... + 3210695.

It is an arithmetic number, because the mean of its divisors is an integer number (753099840).

Almost surely, 2^31234343232 is an apocalyptic number.

31234343232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31234343232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42173591040).

31234343232 is an abundant number, since it is smaller than the sum of its proper divisors (53112838848).

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

31234343232 is a wasteful number, since it uses less digits than its factorization.

31234343232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100 (or 10090 counting only the distinct ones).

The product of its digits is 31104, while the sum is 30.

Adding to 31234343232 its reverse (23234343213), we get a palindrome (54468686445).

The spelling of 31234343232 in words is "thirty-one billion, two hundred thirty-four million, three hundred forty-three thousand, two hundred thirty-two".