111968011 has 2 divisors, whose sum is σ = 111968012. Its totient is φ = 111968010.

The previous prime is 111968009. The next prime is 111968023. The reversal of 111968011 is 110869111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111968011 - 2¹ = 111968009 is a prime.

It is a super-2 number, since 2×111968011² = 25073670974592242, which contains 22 as substring.

Together with 111968009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (111968081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55984005 + 55984006.

It is an arithmetic number, because the mean of its divisors is an integer number (55984006).

Almost surely, 2^111968011 is an apocalyptic number.

111968011 is a deficient number, since it is larger than the sum of its proper divisors (1).

111968011 is an equidigital number, since it uses as much as digits as its factorization.

111968011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 28.

The square root of 111968011 is about 10581.4937981364. The cubic root of 111968011 is about 481.9825567742.

The spelling of 111968011 in words is "one hundred eleven million, nine hundred sixty-eight thousand, eleven".