203120100404 has 12 divisors (see below), whose sum is σ = 382803266244. Its totient is φ = 93747738624.

The previous prime is 203120100401. The next prime is 203120100427. The reversal of 203120100404 is 404001021302.

203120100404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45368148004 + 157751952400 = 212998^2 + 397180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203120100401) 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 3 ways as a sum of consecutive naturals, for example, 1953077837 + ... + 1953077940.

It is an arithmetic number, because the mean of its divisors is an integer number (31900272187).

Almost surely, 2^203120100404 is an apocalyptic number.

It is an amenable number.

203120100404 is a deficient number, since it is larger than the sum of its proper divisors (179683165840).

203120100404 is a wasteful number, since it uses less digits than its factorization.

203120100404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906155794 (or 3906155792 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 203120100404 its reverse (404001021302), we get a palindrome (607121121706).

The spelling of 203120100404 in words is "two hundred three billion, one hundred twenty million, one hundred thousand, four hundred four".