2011115240251 has 6 divisors (see below), whose sum is σ = 2177716502940. Its totient is φ = 1856414067768.

The previous prime is 2011115240221. The next prime is 2011115240257. The reversal of 2011115240251 is 1520425111102.

It is not a de Polignac number, because 2011115240251 - 2⁹ = 2011115239739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011115240257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5950044921 + ... + 5950045258.

It is an arithmetic number, because the mean of its divisors is an integer number (362952750490).

Almost surely, 2^{2011115240251} is an apocalyptic number.

2011115240251 is a deficient number, since it is larger than the sum of its proper divisors (166601262689).

2011115240251 is a wasteful number, since it uses less digits than its factorization.

2011115240251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11900090205 (or 11900090192 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 2011115240251 in words is "two trillion, eleven billion, one hundred fifteen million, two hundred forty thousand, two hundred fifty-one".