22123113213031 has 4 divisors (see below), whose sum is σ = 22124235720600. Its totient is φ = 22121990705464.

The previous prime is 22123113213017. The next prime is 22123113213041. The reversal of 22123113213031 is 13031231132122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22123113213031 - 2¹⁷ = 22123113081959 is a prime.

It is a super-2 number, since 2×22123113213031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22123113212987 and 22123113213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123113213041) 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, 561224221 + ... + 561263638.

It is an arithmetic number, because the mean of its divisors is an integer number (5531058930150).

Almost surely, 2^{22123113213031} is an apocalyptic number.

22123113213031 is a deficient number, since it is larger than the sum of its proper divisors (1122507569).

22123113213031 is a wasteful number, since it uses less digits than its factorization.

22123113213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122507568.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 22123113213031 its reverse (13031231132122), we get a palindrome (35154344345153).

The spelling of 22123113213031 in words is "twenty-two trillion, one hundred twenty-three billion, one hundred thirteen million, two hundred thirteen thousand, thirty-one".