23190011 has 6 divisors (see below), whose sum is σ = 25111260. Its totient is φ = 21406008.

The previous prime is 23189923. The next prime is 23190017. The reversal of 23190011 is 11009132.

It is a happy number.

It is not a de Polignac number, because 23190011 - 2¹⁸ = 22927867 is a prime.

It is a super-2 number, since 2×23190011² = 1075553220360242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23190017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68441 + ... + 68778.

It is an arithmetic number, because the mean of its divisors is an integer number (4185210).

Almost surely, 2^23190011 is an apocalyptic number.

23190011 is a deficient number, since it is larger than the sum of its proper divisors (1921249).

23190011 is a wasteful number, since it uses less digits than its factorization.

23190011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137245 (or 137232 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 23190011 is about 4815.6007932552. The cubic root of 23190011 is about 285.1676903771.

Adding to 23190011 its reverse (11009132), we get a palindrome (34199143).

The spelling of 23190011 in words is "twenty-three million, one hundred ninety thousand, eleven".