31734243112 has 96 divisors (see below), whose sum is σ = 71764124040. Its totient is φ = 13063564800.

The previous prime is 31734243103. The next prime is 31734243119. The reversal of 31734243112 is 21134243713.

It can be written as a sum of positive squares in 4 ways, for example, as 27904366116 + 3829876996 = 167046^2 + 61886^2 .

It is not an unprimeable number, because it can be changed into a prime (31734243119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 643162 + ... + 690742.

Almost surely, 2^31734243112 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 31734243112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35882062020).

31734243112 is an abundant number, since it is smaller than the sum of its proper divisors (40029880928).

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

31734243112 is a wasteful number, since it uses less digits than its factorization.

31734243112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47675 (or 47660 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

Adding to 31734243112 its reverse (21134243713), we get a palindrome (52868486825).

The spelling of 31734243112 in words is "thirty-one billion, seven hundred thirty-four million, two hundred forty-three thousand, one hundred twelve".