22311331302013 has 8 divisors (see below), whose sum is σ = 24188846535000. Its totient is φ = 20456853066048.

The previous prime is 22311331301977. The next prime is 22311331302041. The reversal of 22311331302013 is 31020313311322.

It can be written as a sum of positive squares in 4 ways, for example, as 3141408849604 + 19169922452409 = 1772402^2 + 4378347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22311331302013 - 2²⁵ = 22311297747581 is a prime.

It is a super-3 number, since 3×22311331302013³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22311331302053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5759247238 + ... + 5759251111.

It is an arithmetic number, because the mean of its divisors is an integer number (3023605816875).

Almost surely, 2^{22311331302013} is an apocalyptic number.

It is an amenable number.

22311331302013 is a deficient number, since it is larger than the sum of its proper divisors (1877515232987).

22311331302013 is a wasteful number, since it uses less digits than its factorization.

22311331302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11518498511.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 22311331302013 its reverse (31020313311322), we get a palindrome (53331644613335).

The spelling of 22311331302013 in words is "twenty-two trillion, three hundred eleven billion, three hundred thirty-one million, three hundred two thousand, thirteen".