203123321203112 has 16 divisors (see below), whose sum is σ = 391149638803860. Its totient is φ = 98816750855424.

The previous prime is 203123321203109. The next prime is 203123321203123. The reversal of 203123321203112 is 211302123321302.

It can be written as a sum of positive squares in 2 ways, for example, as 203064609005476 + 58712197636 = 14250074^2 + 242306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343113717953 + ... + 343113718544.

Almost surely, 2^{203123321203112} is an apocalyptic number.

It is an amenable number.

203123321203112 is a deficient number, since it is larger than the sum of its proper divisors (188026317600748).

203123321203112 is a wasteful number, since it uses less digits than its factorization.

203123321203112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686227436540 (or 686227436536 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 203123321203112 its reverse (211302123321302), we get a palindrome (414425444524414).

The spelling of 203123321203112 in words is "two hundred three trillion, one hundred twenty-three billion, three hundred twenty-one million, two hundred three thousand, one hundred twelve".