12313030032 has 90 divisors (see below), whose sum is σ = 34671852722. Its totient is φ = 4079190528.

The previous prime is 12313030031. The next prime is 12313030057. The reversal of 12313030032 is 23003031321.

It can be written as a sum of positive squares in 3 ways, for example, as 8280272016 + 4032758016 = 90996^2 + 63504^2 .

It is a super-2 number, since 2×12313030032² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12313029987 and 12313030014.

It is not an unprimeable number, because it can be changed into a prime (12313030031) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4308348 + ... + 4311204.

Almost surely, 2^12313030032 is an apocalyptic number.

12313030032 is a gapful number since it is divisible by the number (12) 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 12313030032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17335926361).

12313030032 is an abundant number, since it is smaller than the sum of its proper divisors (22358822690).

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

12313030032 is a wasteful number, since it uses less digits than its factorization.

12313030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217 (or 3035 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12313030032 its reverse (23003031321), we get a palindrome (35316061353).

The spelling of 12313030032 in words is "twelve billion, three hundred thirteen million, thirty thousand, thirty-two".