31234335132 has 192 divisors, whose sum is σ = 100241261568. Its totient is φ = 7305984000.

The previous prime is 31234335113. The next prime is 31234335137. The reversal of 31234335132 is 23153343213.

It is a super-2 number, since 2×31234335132² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31234335132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234335137) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 460782 + ... + 524202.

It is an arithmetic number, because the mean of its divisors is an integer number (522089904).

Almost surely, 2^31234335132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31234335132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50120630784).

31234335132 is an abundant number, since it is smaller than the sum of its proper divisors (69006926436).

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

31234335132 is a wasteful number, since it uses less digits than its factorization.

31234335132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63500 (or 63498 counting only the distinct ones).

The product of its digits is 19440, while the sum is 30.

Adding to 31234335132 its reverse (23153343213), we get a palindrome (54387678345).

The spelling of 31234335132 in words is "thirty-one billion, two hundred thirty-four million, three hundred thirty-five thousand, one hundred thirty-two".