23033111131 has 4 divisors (see below), whose sum is σ = 23044476312. Its totient is φ = 23021745952.

The previous prime is 23033111093. The next prime is 23033111137. The reversal of 23033111131 is 13111133032.

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 23033111131 - 2²⁹ = 22496240219 is a prime.

It is a super-2 number, since 2×23033111131² (a number of 22 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 = 23033111099 and 23033111108.

It is not an unprimeable number, because it can be changed into a prime (23033111137) 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, 5679550 + ... + 5683603.

It is an arithmetic number, because the mean of its divisors is an integer number (5761119078).

Almost surely, 2^23033111131 is an apocalyptic number.

23033111131 is a deficient number, since it is larger than the sum of its proper divisors (11365181).

23033111131 is a wasteful number, since it uses less digits than its factorization.

23033111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365180.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 23033111131 its reverse (13111133032), we get a palindrome (36144244163).

The spelling of 23033111131 in words is "twenty-three billion, thirty-three million, one hundred eleven thousand, one hundred thirty-one".