22313131133 has 4 divisors (see below), whose sum is σ = 22313706588. Its totient is φ = 22312555680.

The previous prime is 22313131121. The next prime is 22313131153. The reversal of 22313131133 is 33113131322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8941215364 + 13371915769 = 94558^2 + 115637^2 .

It is a cyclic number.

It is not a de Polignac number, because 22313131133 - 2¹⁰ = 22313130109 is a prime.

It is a super-3 number, since 3×22313131133³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22313131099 and 22313131108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313131103) 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, 225008 + ... + 308633.

It is an arithmetic number, because the mean of its divisors is an integer number (5578426647).

Almost surely, 2^22313131133 is an apocalyptic number.

It is an amenable number.

22313131133 is a deficient number, since it is larger than the sum of its proper divisors (575455).

22313131133 is an equidigital number, since it uses as much as digits as its factorization.

22313131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575454.

The product of its digits is 972, while the sum is 23.

Adding to 22313131133 its reverse (33113131322), we get a palindrome (55426262455).

The spelling of 22313131133 in words is "twenty-two billion, three hundred thirteen million, one hundred thirty-one thousand, one hundred thirty-three".