22313313 has 40 divisors (see below), whose sum is σ = 36938880. Its totient is φ = 13309920.

The previous prime is 22313303. The next prime is 22313321. The reversal of 22313313 is 31331322.

It is a de Polignac number, because none of the positive numbers 2^k-22313313 is a prime.

It is a super-3 number, since 3×22313313³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22313303) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70231 + ... + 70547.

It is an arithmetic number, because the mean of its divisors is an integer number (923472).

Almost surely, 2^22313313 is an apocalyptic number.

It is an amenable number.

22313313 is a deficient number, since it is larger than the sum of its proper divisors (14625567).

22313313 is a wasteful number, since it uses less digits than its factorization.

22313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 410 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 22313313 is about 4723.6969631847. The cubic root of 22313313 is about 281.5278427661.

Adding to 22313313 its reverse (31331322), we get a palindrome (53644635).

Subtracting 22313313 from its reverse (31331322), we obtain a square (9018009 = 3003²).

The spelling of 22313313 in words is "twenty-two million, three hundred thirteen thousand, three hundred thirteen".