251231012412233 has 32 divisors (see below), whose sum is σ = 293091635865600. Its totient is φ = 215259401631120.

The previous prime is 251231012412151. The next prime is 251231012412251. The reversal of 251231012412233 is 332214210132152.

It is not a de Polignac number, because 251231012412233 - 2¹² = 251231012408137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 251231012412233.

It is not an unprimeable number, because it can be changed into a prime (251231012412283) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13577843660 + ... + 13577862162.

It is an arithmetic number, because the mean of its divisors is an integer number (9159113620800).

Almost surely, 2^{251231012412233} is an apocalyptic number.

It is an amenable number.

251231012412233 is a deficient number, since it is larger than the sum of its proper divisors (41860623453367).

251231012412233 is an equidigital number, since it uses as much as digits as its factorization.

251231012412233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31362 (or 31348 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 251231012412233 its reverse (332214210132152), we get a palindrome (583445222544385).

The spelling of 251231012412233 in words is "two hundred fifty-one trillion, two hundred thirty-one billion, twelve million, four hundred twelve thousand, two hundred thirty-three".