203122990401 has 8 divisors (see below), whose sum is σ = 270837398304. Its totient is φ = 135411954720.

The previous prime is 203122990397. The next prime is 203122990459. The reversal of 203122990401 is 104099221302.

203122990401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203122990401 - 2² = 203122990397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203122990501) by changing a digit.

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, 698991 + ... + 945956.

It is an arithmetic number, because the mean of its divisors is an integer number (33854674788).

Almost surely, 2^203122990401 is an apocalyptic number.

It is an amenable number.

203122990401 is a deficient number, since it is larger than the sum of its proper divisors (67714407903).

203122990401 is a wasteful number, since it uses less digits than its factorization.

203122990401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686111.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 203122990401 in words is "two hundred three billion, one hundred twenty-two million, nine hundred ninety thousand, four hundred one".