1013110121 has 8 divisors (see below), whose sum is σ = 1074042144. Its totient is φ = 952326720.

The previous prime is 1013110117. The next prime is 1013110139. The reversal of 1013110121 is 1210113101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1013110121 - 2² = 1013110117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013113121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22955 + ... + 50528.

It is an arithmetic number, because the mean of its divisors is an integer number (134255268).

Almost surely, 2^1013110121 is an apocalyptic number.

It is an amenable number.

1013110121 is a deficient number, since it is larger than the sum of its proper divisors (60932023).

1013110121 is an equidigital number, since it uses as much as digits as its factorization.

1013110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74311.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1013110121 is about 31829.3908361439. The cubic root of 1013110121 is about 1004.3510809696.

Adding to 1013110121 its reverse (1210113101), we get a palindrome (2223223222).

The spelling of 1013110121 in words is "one billion, thirteen million, one hundred ten thousand, one hundred twenty-one".