11111051151151 has 4 divisors (see below), whose sum is σ = 12698344172752. Its totient is φ = 9523758129552.

The previous prime is 11111051151133. The next prime is 11111051151181. The reversal of 11111051151151 is 15115115011111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11111051151151 - 2⁵ = 11111051151119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111051151181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793646510790 + ... + 793646510803.

It is an arithmetic number, because the mean of its divisors is an integer number (3174586043188).

Almost surely, 2^{11111051151151} is an apocalyptic number.

11111051151151 is a deficient number, since it is larger than the sum of its proper divisors (1587293021601).

11111051151151 is an equidigital number, since it uses as much as digits as its factorization.

11111051151151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587293021600.

The product of its (nonzero) digits is 125, while the sum is 25.

Adding to 11111051151151 its reverse (15115115011111), we get a palindrome (26226166162262).

The spelling of 11111051151151 in words is "eleven trillion, one hundred eleven billion, fifty-one million, one hundred fifty-one thousand, one hundred fifty-one".