121004303123 has 12 divisors (see below), whose sum is σ = 136097868984. Its totient is φ = 107445676800.

The previous prime is 121004303113. The next prime is 121004303131. The reversal of 121004303123 is 321303400121.

It is not a de Polignac number, because 121004303123 - 2¹² = 121004299027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121004303095 and 121004303104.

It is not an unprimeable number, because it can be changed into a prime (121004303113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11623118 + ... + 11633523.

It is an arithmetic number, because the mean of its divisors is an integer number (11341489082).

Almost surely, 2^121004303123 is an apocalyptic number.

121004303123 is a deficient number, since it is larger than the sum of its proper divisors (15093565861).

121004303123 is a wasteful number, since it uses less digits than its factorization.

121004303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23256706 (or 23256695 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121004303123 its reverse (321303400121), we get a palindrome (442307703244).

The spelling of 121004303123 in words is "one hundred twenty-one billion, four million, three hundred three thousand, one hundred twenty-three".