121116052551603 has 128 divisors (see below), whose sum is σ = 175081589489664. Its totient is φ = 74345555289600.

The previous prime is 121116052551587. The next prime is 121116052551607. The reversal of 121116052551603 is 306155250611121.

It is not a de Polignac number, because 121116052551603 - 2⁴ = 121116052551587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121116052551607) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31483245426 + ... + 31483249272.

It is an arithmetic number, because the mean of its divisors is an integer number (1367824917888).

Almost surely, 2^{121116052551603} is an apocalyptic number.

121116052551603 is a deficient number, since it is larger than the sum of its proper divisors (53965536938061).

121116052551603 is a wasteful number, since it uses less digits than its factorization.

121116052551603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585.

The product of its (nonzero) digits is 54000, while the sum is 39.

The spelling of 121116052551603 in words is "one hundred twenty-one trillion, one hundred sixteen billion, fifty-two million, five hundred fifty-one thousand, six hundred three".