1112013121 has 4 divisors (see below), whose sum is σ = 1147884544. Its totient is φ = 1076141700.

The previous prime is 1112013107. The next prime is 1112013127. The reversal of 1112013121 is 1213102111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112013121 - 2¹⁷ = 1111882049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112013127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17935665 + ... + 17935726.

It is an arithmetic number, because the mean of its divisors is an integer number (286971136).

Almost surely, 2^1112013121 is an apocalyptic number.

It is an amenable number.

1112013121 is a deficient number, since it is larger than the sum of its proper divisors (35871423).

1112013121 is an equidigital number, since it uses as much as digits as its factorization.

1112013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35871422.

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

The square root of 1112013121 is about 33346.8607368070. The cubic root of 1112013121 is about 1036.0243682869.

Adding to 1112013121 its reverse (1213102111), we get a palindrome (2325115232).

The spelling of 1112013121 in words is "one billion, one hundred twelve million, thirteen thousand, one hundred twenty-one".