12312120101 has 4 divisors (see below), whose sum is σ = 12427186752. Its totient is φ = 12197053452.

The previous prime is 12312120089. The next prime is 12312120113. The reversal of 12312120101 is 10102121321.

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.

It is an interprime number because it is at equal distance from previous prime (12312120089) and next prime (12312120113).

It is a cyclic number.

It is not a de Polignac number, because 12312120101 - 2¹⁰ = 12312119077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312120131) 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, 57533165 + ... + 57533378.

It is an arithmetic number, because the mean of its divisors is an integer number (3106796688).

Almost surely, 2^12312120101 is an apocalyptic number.

It is an amenable number.

12312120101 is a deficient number, since it is larger than the sum of its proper divisors (115066651).

12312120101 is a wasteful number, since it uses less digits than its factorization.

12312120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115066650.

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

Adding to 12312120101 its reverse (10102121321), we get a palindrome (22414241422).

The spelling of 12312120101 in words is "twelve billion, three hundred twelve million, one hundred twenty thousand, one hundred one".