31144234332 has 48 divisors (see below), whose sum is σ = 76736096640. Its totient is φ = 9803973312.

The previous prime is 31144234291. The next prime is 31144234369. The reversal of 31144234332 is 23343244113.

It is a happy number.

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 31144234332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143178 + ... + 287729.

It is an arithmetic number, because the mean of its divisors is an integer number (1598668680).

Almost surely, 2^31144234332 is an apocalyptic number.

It is an amenable number.

31144234332 is an abundant number, since it is smaller than the sum of its proper divisors (45591862308).

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

31144234332 is a wasteful number, since it uses less digits than its factorization.

31144234332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431250 (or 431248 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 31144234332 its reverse (23343244113), we get a palindrome (54487478445).

The spelling of 31144234332 in words is "thirty-one billion, one hundred forty-four million, two hundred thirty-four thousand, three hundred thirty-two".