12311020002 has 16 divisors (see below), whose sum is σ = 24629203872. Its totient is φ = 4102479360.

The previous prime is 12311019983. The next prime is 12311020009. The reversal of 12311020002 is 20002011321.

It is a super-2 number, since 2×12311020002² (a number of 21 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 12311020002.

It is not an unprimeable number, because it can be changed into a prime (12311020009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276024 + ... + 317507.

It is an arithmetic number, because the mean of its divisors is an integer number (1539325242).

Almost surely, 2^12311020002 is an apocalyptic number.

12311020002 is an abundant number, since it is smaller than the sum of its proper divisors (12318183870).

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

12311020002 is a wasteful number, since it uses less digits than its factorization.

12311020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596993.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12311020002 its reverse (20002011321), we get a palindrome (32313031323).

The spelling of 12311020002 in words is "twelve billion, three hundred eleven million, twenty thousand, two".