111920858011 has 16 divisors (see below), whose sum is σ = 118848228480. Its totient is φ = 105032072320.

The previous prime is 111920858009. The next prime is 111920858017. The reversal of 111920858011 is 110858029111.

It is a cyclic number.

It is not a de Polignac number, because 111920858011 - 2¹ = 111920858009 is a prime.

It is a super-2 number, since 2×111920858011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111920858017) 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, 10904400 + ... + 10914658.

It is an arithmetic number, because the mean of its divisors is an integer number (7428014280).

Almost surely, 2^111920858011 is an apocalyptic number.

111920858011 is a deficient number, since it is larger than the sum of its proper divisors (6927370469).

111920858011 is a wasteful number, since it uses less digits than its factorization.

111920858011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12074.

The product of its (nonzero) digits is 5760, while the sum is 37.

The spelling of 111920858011 in words is "one hundred eleven billion, nine hundred twenty million, eight hundred fifty-eight thousand, eleven".