251050113511113 has 16 divisors (see below), whose sum is σ = 394892958887936. Its totient is φ = 138829555858320.

The previous prime is 251050113511033. The next prime is 251050113511279. The reversal of 251050113511113 is 311115311050152.

It is not a de Polignac number, because 251050113511113 - 2²⁸ = 251049845075657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251050113501113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192818826931 + ... + 192818828232.

It is an arithmetic number, because the mean of its divisors is an integer number (24680809930496).

Almost surely, 2^{251050113511113} is an apocalyptic number.

It is an amenable number.

251050113511113 is a deficient number, since it is larger than the sum of its proper divisors (143842845376823).

251050113511113 is a wasteful number, since it uses less digits than its factorization.

251050113511113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385637655204.

The product of its (nonzero) digits is 2250, while the sum is 30.

Adding to 251050113511113 its reverse (311115311050152), we get a palindrome (562165424561265).

The spelling of 251050113511113 in words is "two hundred fifty-one trillion, fifty billion, one hundred thirteen million, five hundred eleven thousand, one hundred thirteen".