203112553253011 has 6 divisors (see below), whose sum is σ = 205103665106340. Its totient is φ = 201140586706068.

The previous prime is 203112553252997. The next prime is 203112553253161. The reversal of 203112553253011 is 110352355211302.

It is not a de Polignac number, because 203112553253011 - 2²⁷ = 203112419035283 is a prime.

It is a super-2 number, since 2×203112553253011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203112553253411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9572642481 + ... + 9572663698.

It is an arithmetic number, because the mean of its divisors is an integer number (34183944184390).

Almost surely, 2^{203112553253011} is an apocalyptic number.

203112553253011 is a deficient number, since it is larger than the sum of its proper divisors (1991111853329).

203112553253011 is an equidigital number, since it uses as much as digits as its factorization.

203112553253011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19145306385 (or 19145306282 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 203112553253011 in words is "two hundred three trillion, one hundred twelve billion, five hundred fifty-three million, two hundred fifty-three thousand, eleven".