23121104234 has 4 divisors (see below), whose sum is σ = 34681656354. Its totient is φ = 11560552116.

The previous prime is 23121104221. The next prime is 23121104239. The reversal of 23121104234 is 43240112132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19389727009 + 3731377225 = 139247^2 + 61085^2 .

It is not an unprimeable number, because it can be changed into a prime (23121104239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5780276057 + ... + 5780276060.

Almost surely, 2^23121104234 is an apocalyptic number.

23121104234 is a deficient number, since it is larger than the sum of its proper divisors (11560552120).

23121104234 is a wasteful number, since it uses less digits than its factorization.

23121104234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560552119.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23121104234 its reverse (43240112132), we get a palindrome (66361216366).

The spelling of 23121104234 in words is "twenty-three billion, one hundred twenty-one million, one hundred four thousand, two hundred thirty-four".