203112234312 has 64 divisors (see below), whose sum is σ = 547203807360. Its totient is φ = 62454566400.

The previous prime is 203112234293. The next prime is 203112234331. The reversal of 203112234312 is 213432211302.

It is an interprime number because it is at equal distance from previous prime (203112234293) and next prime (203112234331).

It is a super-2 number, since 2×203112234312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256012 + ... + 686852.

It is an arithmetic number, because the mean of its divisors is an integer number (8550059490).

Almost surely, 2^203112234312 is an apocalyptic number.

It is an amenable number.

203112234312 is an abundant number, since it is smaller than the sum of its proper divisors (344091573048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203112234312 is a wasteful number, since it uses less digits than its factorization.

203112234312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432374 (or 432370 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 203112234312 its reverse (213432211302), we get a palindrome (416544445614).

The spelling of 203112234312 in words is "two hundred three billion, one hundred twelve million, two hundred thirty-four thousand, three hundred twelve".