312113121101 has 4 divisors (see below), whose sum is σ = 312474782592. Its totient is φ = 311751459612.

The previous prime is 312113121053. The next prime is 312113121119. The reversal of 312113121101 is 101121311213.

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: 101121311213 = 13 ⋅7778562401.

It is a cyclic number.

It is not a de Polignac number, because 312113121101 - 2⁶ = 312113121037 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 312113121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113171101) 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, 180829451 + ... + 180831176.

It is an arithmetic number, because the mean of its divisors is an integer number (78118695648).

Almost surely, 2^312113121101 is an apocalyptic number.

It is an amenable number.

312113121101 is a deficient number, since it is larger than the sum of its proper divisors (361661491).

312113121101 is an equidigital number, since it uses as much as digits as its factorization.

312113121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361661490.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 312113121101 its reverse (101121311213), we get a palindrome (413234432314).

The spelling of 312113121101 in words is "three hundred twelve billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred one".