121423100104 has 8 divisors (see below), whose sum is σ = 227668312710. Its totient is φ = 60711550048.

The previous prime is 121423100077. The next prime is 121423100143. The reversal of 121423100104 is 401001324121.

It can be written as a sum of positive squares in only one way, i.e., 96908935204 + 24514164900 = 311302^2 + 156570^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7588943749 + ... + 7588943764.

Almost surely, 2^121423100104 is an apocalyptic number.

It is an amenable number.

121423100104 is a deficient number, since it is larger than the sum of its proper divisors (106245212606).

121423100104 is a wasteful number, since it uses less digits than its factorization.

121423100104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15177887519 (or 15177887515 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121423100104 its reverse (401001324121), we get a palindrome (522424424225).

The spelling of 121423100104 in words is "one hundred twenty-one billion, four hundred twenty-three million, one hundred thousand, one hundred four".