23011221234 has 16 divisors (see below), whose sum is σ = 46128735072. Its totient is φ = 7652691648.

The previous prime is 23011221209. The next prime is 23011221287. The reversal of 23011221234 is 43212211032.

It is a self number, because there is not a number n which added to its sum of digits gives 23011221234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4426044 + ... + 4431239.

It is an arithmetic number, because the mean of its divisors is an integer number (2883045942).

Almost surely, 2^23011221234 is an apocalyptic number.

23011221234 is an abundant number, since it is smaller than the sum of its proper divisors (23117513838).

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

23011221234 is a wasteful number, since it uses less digits than its factorization.

23011221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8857721.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23011221234 its reverse (43212211032), we get a palindrome (66223432266).

The spelling of 23011221234 in words is "twenty-three billion, eleven million, two hundred twenty-one thousand, two hundred thirty-four".