203122343112203 has 4 divisors (see below), whose sum is σ = 210126561840240. Its totient is φ = 196118124384168.

The previous prime is 203122343112127. The next prime is 203122343112251. The reversal of 203122343112203 is 302211343221302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203122343112203 - 2¹² = 203122343108107 is a prime.

It is a super-4 number, since 4×203122343112203⁴ (a number of 58 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 7004218728007 = 203122343112203 / (2 + 0 + 3 + 1 + 2 + 2 + 3 + 4 + 3 + 1 + 1 + 2 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203122343112803) 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, 3502109363975 + ... + 3502109364032.

It is an arithmetic number, because the mean of its divisors is an integer number (52531640460060).

Almost surely, 2^{203122343112203} is an apocalyptic number.

203122343112203 is a deficient number, since it is larger than the sum of its proper divisors (7004218728037).

203122343112203 is an equidigital number, since it uses as much as digits as its factorization.

203122343112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004218728036.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 203122343112203 its reverse (302211343221302), we get a palindrome (505333686333505).

The spelling of 203122343112203 in words is "two hundred three trillion, one hundred twenty-two billion, three hundred forty-three million, one hundred twelve thousand, two hundred three".