312110121012101 has 4 divisors (see below), whose sum is σ = 312294039765132. Its totient is φ = 311926202259072.

The previous prime is 312110121012049. The next prime is 312110121012167. The reversal of 312110121012101 is 101210121011213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307892646796900 + 4217474215201 = 17546870^2 + 2053649^2 .

It is a cyclic number.

It is not a de Polignac number, because 312110121012101 - 2¹⁸ = 312110120749957 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 312110121012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312110141012101) 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, 91959373970 + ... + 91959377363.

It is an arithmetic number, because the mean of its divisors is an integer number (78073509941283).

Almost surely, 2^{312110121012101} is an apocalyptic number.

It is an amenable number.

312110121012101 is a deficient number, since it is larger than the sum of its proper divisors (183918753031).

312110121012101 is a wasteful number, since it uses less digits than its factorization.

312110121012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183918753030.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 312110121012101 its reverse (101210121011213), we get a palindrome (413320242023314).

The spelling of 312110121012101 in words is "three hundred twelve trillion, one hundred ten billion, one hundred twenty-one million, twelve thousand, one hundred one".