23211304138 has 16 divisors (see below), whose sum is σ = 37991416320. Its totient is φ = 10548014400.

The previous prime is 23211304133. The next prime is 23211304159. The reversal of 23211304138 is 83140311232.

It is not an unprimeable number, because it can be changed into a prime (23211304133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35343 + ... + 218338.

It is an arithmetic number, because the mean of its divisors is an integer number (2374463520).

Almost surely, 2^23211304138 is an apocalyptic number.

23211304138 is a deficient number, since it is larger than the sum of its proper divisors (14780112182).

23211304138 is a wasteful number, since it uses less digits than its factorization.

23211304138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257853.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 23211304138 in words is "twenty-three billion, two hundred eleven million, three hundred four thousand, one hundred thirty-eight".