23121102104 has 8 divisors (see below), whose sum is σ = 43352066460. Its totient is φ = 11560551048.

The previous prime is 23121102101. The next prime is 23121102119. The reversal of 23121102104 is 40120112132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121102101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445068874 + ... + 1445068889.

Almost surely, 2^23121102104 is an apocalyptic number.

It is an amenable number.

23121102104 is a deficient number, since it is larger than the sum of its proper divisors (20230964356).

23121102104 is a wasteful number, since it uses less digits than its factorization.

23121102104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890137769 (or 2890137765 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23121102104 its reverse (40120112132), we get a palindrome (63241214236).

The spelling of 23121102104 in words is "twenty-three billion, one hundred twenty-one million, one hundred two thousand, one hundred four".