23207031 has 6 divisors (see below), whose sum is σ = 33521280. Its totient is φ = 15471348.

The previous prime is 23207021. The next prime is 23207083. The reversal of 23207031 is 13070232.

It is not a de Polignac number, because 23207031 - 2¹³ = 23198839 is a prime.

It is a super-2 number, since 2×23207031² = 1077132575669922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23206995 and 23207013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23207021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1289271 + ... + 1289288.

It is an arithmetic number, because the mean of its divisors is an integer number (5586880).

Almost surely, 2^23207031 is an apocalyptic number.

23207031 is a deficient number, since it is larger than the sum of its proper divisors (10314249).

23207031 is a wasteful number, since it uses less digits than its factorization.

23207031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578565 (or 2578562 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 23207031 is about 4817.3676421880. The cubic root of 23207031 is about 285.2374383269.

Adding to 23207031 its reverse (13070232), we get a palindrome (36277263).

The spelling of 23207031 in words is "twenty-three million, two hundred seven thousand, thirty-one".