22313212313 has 4 divisors (see below), whose sum is σ = 25500814080. Its totient is φ = 19125610548.

The previous prime is 22313212297. The next prime is 22313212373. The reversal of 22313212313 is 31321231322.

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 22313212313 - 2⁴ = 22313212297 is a prime.

It is a super-3 number, since 3×22313212313³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22313212373) 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, 1593800873 + ... + 1593800886.

It is an arithmetic number, because the mean of its divisors is an integer number (6375203520).

Almost surely, 2^22313212313 is an apocalyptic number.

It is an amenable number.

22313212313 is a deficient number, since it is larger than the sum of its proper divisors (3187601767).

22313212313 is an equidigital number, since it uses as much as digits as its factorization.

22313212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187601766.

The product of its digits is 1296, while the sum is 23.

Adding to 22313212313 its reverse (31321231322), we get a palindrome (53634443635).

The spelling of 22313212313 in words is "twenty-two billion, three hundred thirteen million, two hundred twelve thousand, three hundred thirteen".