203112022010231 has 4 divisors (see below), whose sum is σ = 210115884838200. Its totient is φ = 196108159182264.

The previous prime is 203112022010207. The next prime is 203112022010237. The reversal of 203112022010231 is 132010220211302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203112022010231 is a prime.

It is a super-2 number, since 2×203112022010231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112022010237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3501931413941 + ... + 3501931413998.

It is an arithmetic number, because the mean of its divisors is an integer number (52528971209550).

Almost surely, 2^{203112022010231} is an apocalyptic number.

203112022010231 is a deficient number, since it is larger than the sum of its proper divisors (7003862827969).

203112022010231 is an equidigital number, since it uses as much as digits as its factorization.

203112022010231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003862827968.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 203112022010231 its reverse (132010220211302), we get a palindrome (335122242221533).

The spelling of 203112022010231 in words is "two hundred three trillion, one hundred twelve billion, twenty-two million, ten thousand, two hundred thirty-one".