23138213100 has 72 divisors (see below), whose sum is σ = 66998920128. Its totient is φ = 6165364800.

The previous prime is 23138213071. The next prime is 23138213123. The reversal of 23138213100 is 131283132.

It is a super-2 number, since 2×23138213100² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362595 + ... + 421605.

Almost surely, 2^23138213100 is an apocalyptic number.

23138213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23138213100 is an abundant number, since it is smaller than the sum of its proper divisors (43860707028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23138213100 is a wasteful number, since it uses less digits than its factorization.

23138213100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60335 (or 60328 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 23138213100 its reverse (131283132), we get a palindrome (23269496232).

The spelling of 23138213100 in words is "twenty-three billion, one hundred thirty-eight million, two hundred thirteen thousand, one hundred".