12312320102 has 4 divisors (see below), whose sum is σ = 18468480156. Its totient is φ = 6156160050.

The previous prime is 12312320101. The next prime is 12312320113. The reversal of 12312320102 is 20102321321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20102321321 = 81439 ⋅246839.

It is a super-2 number, since 2×12312320102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312320101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3078080024 + ... + 3078080027.

It is an arithmetic number, because the mean of its divisors is an integer number (4617120039).

Almost surely, 2^12312320102 is an apocalyptic number.

12312320102 is a deficient number, since it is larger than the sum of its proper divisors (6156160054).

12312320102 is an equidigital number, since it uses as much as digits as its factorization.

12312320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156160053.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12312320102 its reverse (20102321321), we get a palindrome (32414641423).

The spelling of 12312320102 in words is "twelve billion, three hundred twelve million, three hundred twenty thousand, one hundred two".