203012112231 has 12 divisors (see below), whose sum is σ = 293244341208. Its totient is φ = 135339274224.

The previous prime is 203012112211. The next prime is 203012112319. The reversal of 203012112231 is 132211210302.

203012112231 is a `hidden beast` number, since 20 + 301 + 2 + 112 + 231 = 666.

It is not a de Polignac number, because 203012112231 - 2¹⁵ = 203012079463 is a prime.

It is a super-2 number, since 2×203012112231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203012112211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606996 + ... + 880038.

It is an arithmetic number, because the mean of its divisors is an integer number (24437028434).

Almost surely, 2^203012112231 is an apocalyptic number.

203012112231 is a deficient number, since it is larger than the sum of its proper divisors (90232228977).

203012112231 is a wasteful number, since it uses less digits than its factorization.

203012112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355662 (or 355659 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203012112231 its reverse (132211210302), we get a palindrome (335223322533).

The spelling of 203012112231 in words is "two hundred three billion, twelve million, one hundred twelve thousand, two hundred thirty-one".