121004255106603 has 96 divisors (see below), whose sum is σ = 198586201544640. Its totient is φ = 70352976384000.

The previous prime is 121004255106599. The next prime is 121004255106643. The reversal of 121004255106603 is 306601552400121.

121004255106603 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 0 + 42 + 5 + 5 + 1 + 0 + 6 + 603 = 666.

It is not a de Polignac number, because 121004255106603 - 2² = 121004255106599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121004255106643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 835078983 + ... + 835223871.

It is an arithmetic number, because the mean of its divisors is an integer number (2068606266090).

Almost surely, 2^{121004255106603} is an apocalyptic number.

121004255106603 is a deficient number, since it is larger than the sum of its proper divisors (77581946438037).

121004255106603 is a wasteful number, since it uses less digits than its factorization.

121004255106603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148381 (or 148378 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 121004255106603 in words is "one hundred twenty-one trillion, four billion, two hundred fifty-five million, one hundred six thousand, six hundred three".