111023120101 has 12 divisors (see below), whose sum is σ = 115479926112. Its totient is φ = 106730055000.

The previous prime is 111023120081. The next prime is 111023120123. The reversal of 111023120101 is 101021320111.

It is a happy number.

It is not a de Polignac number, because 111023120101 - 2¹³ = 111023111909 is a prime.

It is a super-2 number, since 2×111023120101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111023120501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237435 + ... + 527656.

It is an arithmetic number, because the mean of its divisors is an integer number (9623327176).

Almost surely, 2^111023120101 is an apocalyptic number.

It is an amenable number.

111023120101 is a deficient number, since it is larger than the sum of its proper divisors (4456806011).

111023120101 is an equidigital number, since it uses as much as digits as its factorization.

111023120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765304 (or 765273 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111023120101 its reverse (101021320111), we get a palindrome (212044440212).

The spelling of 111023120101 in words is "one hundred eleven billion, twenty-three million, one hundred twenty thousand, one hundred one".