203112000101 has 4 divisors (see below), whose sum is σ = 203146414272. Its totient is φ = 203077585932.

The previous prime is 203112000089. The next prime is 203112000209. The reversal of 203112000101 is 101000211302.

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 a de Polignac number, because none of the positive numbers 2^k-203112000101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112000601) 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, 17198231 + ... + 17210036.

It is an arithmetic number, because the mean of its divisors is an integer number (50786603568).

Almost surely, 2^203112000101 is an apocalyptic number.

It is an amenable number.

203112000101 is a deficient number, since it is larger than the sum of its proper divisors (34414171).

203112000101 is an equidigital number, since it uses as much as digits as its factorization.

203112000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34414170.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 203112000101 its reverse (101000211302), we get a palindrome (304112211403).

The spelling of 203112000101 in words is "two hundred three billion, one hundred twelve million, one hundred one", and thus it is an aban number.