111020103121 has 16 divisors (see below), whose sum is σ = 113143996800. Its totient is φ = 108917424000.

The previous prime is 111020103107. The next prime is 111020103133. The reversal of 111020103121 is 121301020111.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020103121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020103221) 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, 12641710 + ... + 12650488.

It is an arithmetic number, because the mean of its divisors is an integer number (7071499800).

Almost surely, 2^111020103121 is an apocalyptic number.

It is an amenable number.

111020103121 is a deficient number, since it is larger than the sum of its proper divisors (2123893679).

111020103121 is an equidigital number, since it uses as much as digits as its factorization.

111020103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9960.

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

Adding to 111020103121 its reverse (121301020111), we get a palindrome (232321123232).

The spelling of 111020103121 in words is "one hundred eleven billion, twenty million, one hundred three thousand, one hundred twenty-one".