12312420101 has 4 divisors (see below), whose sum is σ = 12468273600. Its totient is φ = 12156566604.

The previous prime is 12312420083. The next prime is 12312420149. The reversal of 12312420101 is 10102421321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10102421321 = 8893 ⋅1135997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12312420101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12312420101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312420401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77926631 + ... + 77926788.

It is an arithmetic number, because the mean of its divisors is an integer number (3117068400).

Almost surely, 2^12312420101 is an apocalyptic number.

It is an amenable number.

12312420101 is a deficient number, since it is larger than the sum of its proper divisors (155853499).

12312420101 is an equidigital number, since it uses as much as digits as its factorization.

12312420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155853498.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12312420101 its reverse (10102421321), we get a palindrome (22414841422).

The spelling of 12312420101 in words is "twelve billion, three hundred twelve million, four hundred twenty thousand, one hundred one".