12312102011 has 32 divisors (see below), whose sum is σ = 14950656000. Its totient is φ = 10011168000.

The previous prime is 12312102007. The next prime is 12312102037. The reversal of 12312102011 is 11020121321.

It is a cyclic number.

It is not a de Polignac number, because 12312102011 - 2² = 12312102007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312102071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242465 + ... + 288813.

It is an arithmetic number, because the mean of its divisors is an integer number (467208000).

Almost surely, 2^12312102011 is an apocalyptic number.

12312102011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12312102011 is a deficient number, since it is larger than the sum of its proper divisors (2638553989).

12312102011 is a wasteful number, since it uses less digits than its factorization.

12312102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46451.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12312102011 its reverse (11020121321), we get a palindrome (23332223332).

The spelling of 12312102011 in words is "twelve billion, three hundred twelve million, one hundred two thousand, eleven".