2122131313 has 4 divisors (see below), whose sum is σ = 2171483248. Its totient is φ = 2072779380.

The previous prime is 2122131311. The next prime is 2122131329. The reversal of 2122131313 is 3131312212.

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 a cyclic number.

It is not a de Polignac number, because 2122131313 - 2¹ = 2122131311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122131311) 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, 24675903 + ... + 24675988.

It is an arithmetic number, because the mean of its divisors is an integer number (542870812).

Almost surely, 2^2122131313 is an apocalyptic number.

It is an amenable number.

2122131313 is a deficient number, since it is larger than the sum of its proper divisors (49351935).

2122131313 is an equidigital number, since it uses as much as digits as its factorization.

2122131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49351934.

The product of its digits is 216, while the sum is 19.

The square root of 2122131313 is about 46066.5964989818. The cubic root of 2122131313 is about 1285.0620091501.

Adding to 2122131313 its reverse (3131312212), we get a palindrome (5253443525).

The spelling of 2122131313 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred thirteen".