2312101213 has 4 divisors (see below), whose sum is σ = 2313896220. Its totient is φ = 2310306208.

The previous prime is 2312101153. The next prime is 2312101217. The reversal of 2312101213 is 3121012132.

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 2091964644 + 220136569 = 45738^2 + 14837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312101213 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 (2312101217) 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, 895570 + ... + 898147.

It is an arithmetic number, because the mean of its divisors is an integer number (578474055).

Almost surely, 2^2312101213 is an apocalyptic number.

It is an amenable number.

2312101213 is a deficient number, since it is larger than the sum of its proper divisors (1795007).

2312101213 is a wasteful number, since it uses less digits than its factorization.

2312101213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795006.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2312101213 is about 48084.3135856175. The cubic root of 2312101213 is about 1322.3170989302.

Adding to 2312101213 its reverse (3121012132), we get a palindrome (5433113345).

It can be divided in two parts, 2 and 312101213, that multiplied together give a palindrome (624202426).

The spelling of 2312101213 in words is "two billion, three hundred twelve million, one hundred one thousand, two hundred thirteen".