203112432311 has 8 divisors (see below), whose sum is σ = 208476364800. Its totient is φ = 197791932888.

The previous prime is 203112432287. The next prime is 203112432319. The reversal of 203112432311 is 113234211302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203112432311 - 2²⁶ = 203045323447 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 (203112432319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10848791 + ... + 10867496.

It is an arithmetic number, because the mean of its divisors is an integer number (26059545600).

Almost surely, 2^203112432311 is an apocalyptic number.

203112432311 is a deficient number, since it is larger than the sum of its proper divisors (5363932489).

203112432311 is a wasteful number, since it uses less digits than its factorization.

203112432311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21716533.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 203112432311 its reverse (113234211302), we get a palindrome (316346643613).

The spelling of 203112432311 in words is "two hundred three billion, one hundred twelve million, four hundred thirty-two thousand, three hundred eleven".