22423031 has 4 divisors (see below), whose sum is σ = 22693272. Its totient is φ = 22152792.

The previous prime is 22423019. The next prime is 22423043. The reversal of 22423031 is 13032422.

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

It is an interprime number because it is at equal distance from previous prime (22423019) and next prime (22423043).

It is a cyclic number.

It is not a de Polignac number, because 22423031 - 2¹⁰ = 22422007 is a prime.

It is a super-2 number, since 2×22423031² = 1005584638453922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423001) 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, 134996 + ... + 135161.

It is an arithmetic number, because the mean of its divisors is an integer number (5673318).

Almost surely, 2^22423031 is an apocalyptic number.

22423031 is a deficient number, since it is larger than the sum of its proper divisors (270241).

22423031 is an equidigital number, since it uses as much as digits as its factorization.

22423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270240.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22423031 is about 4735.2962948479. The cubic root of 22423031 is about 281.9885271056.

Adding to 22423031 its reverse (13032422), we get a palindrome (35455453).

The spelling of 22423031 in words is "twenty-two million, four hundred twenty-three thousand, thirty-one".