23133031 has 2 divisors, whose sum is σ = 23133032. Its totient is φ = 23133030.

The previous prime is 23132999. The next prime is 23133109. The reversal of 23133031 is 13033132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23133031 - 2⁵ = 23132999 is a prime.

It is a super-2 number, since 2×23133031² = 1070274246493922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23132996 and 23133014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23134031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566515 + 11566516.

It is an arithmetic number, because the mean of its divisors is an integer number (11566516).

Almost surely, 2^23133031 is an apocalyptic number.

23133031 is a deficient number, since it is larger than the sum of its proper divisors (1).

23133031 is an equidigital number, since it uses as much as digits as its factorization.

23133031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 23133031 is about 4809.6809665507. The cubic root of 23133031 is about 284.9339376993.

Adding to 23133031 its reverse (13033132), we get a palindrome (36166163).

It can be divided in two parts, 231330 and 31, that added together give a square (231361 = 481²).

The spelling of 23133031 in words is "twenty-three million, one hundred thirty-three thousand, thirty-one".