121003121104 has 20 divisors (see below), whose sum is σ = 236764773540. Its totient is φ = 59902534400.

The previous prime is 121003121069. The next prime is 121003121147. The reversal of 121003121104 is 401121300121.

It can be written as a sum of positive squares in 2 ways, for example, as 95204336704 + 25798784400 = 308552^2 + 160620^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37437469 + ... + 37440700.

It is an arithmetic number, because the mean of its divisors is an integer number (11838238677).

Almost surely, 2^121003121104 is an apocalyptic number.

It is an amenable number.

121003121104 is a deficient number, since it is larger than the sum of its proper divisors (115761652436).

121003121104 is a wasteful number, since it uses less digits than its factorization.

121003121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74878278 (or 74878272 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121003121104 its reverse (401121300121), we get a palindrome (522124421225).

The spelling of 121003121104 in words is "one hundred twenty-one billion, three million, one hundred twenty-one thousand, one hundred four".