203203231000129 has 4 divisors (see below), whose sum is σ = 203519254688176. Its totient is φ = 202887207312084.

The previous prime is 203203231000127. The next prime is 203203231000157. The reversal of 203203231000129 is 921000132302302.

203203231000129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203203231000129 - 2¹ = 203203231000127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203203231000097 and 203203231000106.

It is not an unprimeable number, because it can be changed into a prime (203203231000123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158011843059 + ... + 158011844344.

It is an arithmetic number, because the mean of its divisors is an integer number (50879813672044).

Almost surely, 2^{203203231000129} is an apocalyptic number.

It is an amenable number.

203203231000129 is a deficient number, since it is larger than the sum of its proper divisors (316023688047).

203203231000129 is an equidigital number, since it uses as much as digits as its factorization.

203203231000129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316023688046.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 203203231000129 in words is "two hundred three trillion, two hundred three billion, two hundred thirty-one million, one hundred twenty-nine", and thus it is an aban number.