251201411124 has 48 divisors (see below), whose sum is σ = 604466634240. Its totient is φ = 81155210080.

The previous prime is 251201411117. The next prime is 251201411129. The reversal of 251201411124 is 421114102152.

251201411124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 251201411094 and 251201411103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251201411129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448354 + ... + 2548889.

It is an arithmetic number, because the mean of its divisors is an integer number (12593054880).

Almost surely, 2^251201411124 is an apocalyptic number.

It is an amenable number.

251201411124 is an abundant number, since it is smaller than the sum of its proper divisors (353265223116).

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

251201411124 is a wasteful number, since it uses less digits than its factorization.

251201411124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4997380 (or 4997378 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 251201411124 its reverse (421114102152), we get a palindrome (672315513276).

The spelling of 251201411124 in words is "two hundred fifty-one billion, two hundred one million, four hundred eleven thousand, one hundred twenty-four".