203148969121 has 8 divisors (see below), whose sum is σ = 236908419200. Its totient is φ = 174127687524.

The previous prime is 203148969119. The next prime is 203148969139. The reversal of 203148969121 is 121969841302.

203148969121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203148969121 - 2¹ = 203148969119 is a prime.

It is the 450721-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203148969161) by changing a digit.

It is a nontrivial repunit in base 450720.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296135181 + ... + 296135866.

It is an arithmetic number, because the mean of its divisors is an integer number (29613552400).

Almost surely, 2^203148969121 is an apocalyptic number.

It is an amenable number.

203148969121 is a deficient number, since it is larger than the sum of its proper divisors (33759450079).

203148969121 is an frugal number, since it uses more digits than its factorization.

203148969121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592271068 (or 592271054 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 203148969121 in words is "two hundred three billion, one hundred forty-eight million, nine hundred sixty-nine thousand, one hundred twenty-one".