1113240121 has 16 divisors (see below), whose sum is σ = 1348776576. Its totient is φ = 896967936.

The previous prime is 1113240119. The next prime is 1113240131. The reversal of 1113240121 is 1210423111.

It is a cyclic number.

It is not a de Polignac number, because 1113240121 - 2¹ = 1113240119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113240095 and 1113240104.

It is not an unprimeable number, because it can be changed into a prime (1113240131) 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, 99030 + ... + 109696.

It is an arithmetic number, because the mean of its divisors is an integer number (84298536).

Almost surely, 2^1113240121 is an apocalyptic number.

It is an amenable number.

1113240121 is a deficient number, since it is larger than the sum of its proper divisors (235536455).

1113240121 is a wasteful number, since it uses less digits than its factorization.

1113240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1113240121 is about 33365.2531984998. The cubic root of 1113240121 is about 1036.4052794507.

Adding to 1113240121 its reverse (1210423111), we get a palindrome (2323663232).

The spelling of 1113240121 in words is "one billion, one hundred thirteen million, two hundred forty thousand, one hundred twenty-one".