1151112311111 has 8 divisors (see below), whose sum is σ = 1315651962240. Its totient is φ = 986596418808.

The previous prime is 1151112311099. The next prime is 1151112311123. The reversal of 1151112311111 is 1111132111511.

It is an interprime number because it is at equal distance from previous prime (1151112311099) and next prime (1151112311123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1151112311111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151112311191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5835761 + ... + 6029786.

It is an arithmetic number, because the mean of its divisors is an integer number (164456495280).

Almost surely, 2^{1151112311111} is an apocalyptic number.

1151112311111 is a deficient number, since it is larger than the sum of its proper divisors (164539651129).

1151112311111 is a wasteful number, since it uses less digits than its factorization.

1151112311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11879413.

The product of its digits is 30, while the sum is 20.

Adding to 1151112311111 its reverse (1111132111511), we get a palindrome (2262244422622).

The spelling of 1151112311111 in words is "one trillion, one hundred fifty-one billion, one hundred twelve million, three hundred eleven thousand, one hundred eleven".