203111332101312 has 28 divisors (see below), whose sum is σ = 537398732851896. Its totient is φ = 67703777367040.

The previous prime is 203111332101269. The next prime is 203111332101347. The reversal of 203111332101312 is 213101233111302.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 528935760489 + ... + 528935760872.

Almost surely, 2^{203111332101312} is an apocalyptic number.

It is an amenable number.

203111332101312 is an abundant number, since it is smaller than the sum of its proper divisors (334287400750584).

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

203111332101312 is a wasteful number, since it uses less digits than its factorization.

203111332101312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057871521376 (or 1057871521366 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 203111332101312 its reverse (213101233111302), we get a palindrome (416212565212614).

The spelling of 203111332101312 in words is "two hundred three trillion, one hundred eleven billion, three hundred thirty-two million, one hundred one thousand, three hundred twelve".