111113020111 has 2 divisors, whose sum is σ = 111113020112. Its totient is φ = 111113020110.

The previous prime is 111113020099. The next prime is 111113020121. The reversal of 111113020111 is 111020311111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111113020111 - 2²¹ = 111110922959 is a prime.

It is a super-2 number, since 2×111113020111² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111113020091 and 111113020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111113020121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556510055 + 55556510056.

It is an arithmetic number, because the mean of its divisors is an integer number (55556510056).

Almost surely, 2^111113020111 is an apocalyptic number.

111113020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113020111 is an equidigital number, since it uses as much as digits as its factorization.

111113020111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 111113020111 its reverse (111020311111), we get a palindrome (222133331222).

The spelling of 111113020111 in words is "one hundred eleven billion, one hundred thirteen million, twenty thousand, one hundred eleven".