23257212146 has 16 divisors (see below), whose sum is σ = 39912445440. Its totient is φ = 9956641920.

The previous prime is 23257212103. The next prime is 23257212149. The reversal of 23257212146 is 64121275232.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23257212149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881090 + ... + 907101.

It is an arithmetic number, because the mean of its divisors is an integer number (2494527840).

Almost surely, 2^23257212146 is an apocalyptic number.

23257212146 is a deficient number, since it is larger than the sum of its proper divisors (16655233294).

23257212146 is a wasteful number, since it uses less digits than its factorization.

23257212146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789129.

The product of its digits is 40320, while the sum is 35.

Adding to 23257212146 its reverse (64121275232), we get a palindrome (87378487378).

The spelling of 23257212146 in words is "twenty-three billion, two hundred fifty-seven million, two hundred twelve thousand, one hundred forty-six".