20221113131 has 8 divisors (see below), whose sum is σ = 21534354144. Its totient is φ = 18921623680.

The previous prime is 20221113119. The next prime is 20221113169. The reversal of 20221113131 is 13131112202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221113131 is a prime.

It is a super-2 number, since 2×20221113131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221113331) 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, 3434855 + ... + 3440736.

It is an arithmetic number, because the mean of its divisors is an integer number (2691794268).

Almost surely, 2^20221113131 is an apocalyptic number.

20221113131 is a deficient number, since it is larger than the sum of its proper divisors (1313241013).

20221113131 is a wasteful number, since it uses less digits than its factorization.

20221113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875781.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20221113131 its reverse (13131112202), we get a palindrome (33352225333).

The spelling of 20221113131 in words is "twenty billion, two hundred twenty-one million, one hundred thirteen thousand, one hundred thirty-one".