12312002034 has 12 divisors (see below), whose sum is σ = 26676004446. Its totient is φ = 4104000672.

The previous prime is 12312001993. The next prime is 12312002057. The reversal of 12312002034 is 43020021321.

It can be written as a sum of positive squares in only one way, i.e., 10079156025 + 2232846009 = 100395^2 + 47253^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 684000113 = 12312002034 / (1 + 2 + 3 + 1 + 2 + 0 + 0 + 2 + 0 + 3 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 12312001998 and 12312002016.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342000039 + ... + 342000074.

Almost surely, 2^12312002034 is an apocalyptic number.

12312002034 is an abundant number, since it is smaller than the sum of its proper divisors (14364002412).

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

12312002034 is a wasteful number, since it uses less digits than its factorization.

12312002034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684000121 (or 684000118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12312002034 its reverse (43020021321), we get a palindrome (55332023355).

The spelling of 12312002034 in words is "twelve billion, three hundred twelve million, two thousand, thirty-four".