1040121113 has 4 divisors (see below), whose sum is σ = 1040886708. Its totient is φ = 1039355520.

The previous prime is 1040121107. The next prime is 1040121133. The reversal of 1040121113 is 3111210401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 606981769 + 433139344 = 24637^2 + 20812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040121113 - 2¹⁴ = 1040104729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040121133) 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, 380756 + ... + 383477.

It is an arithmetic number, because the mean of its divisors is an integer number (260221677).

Almost surely, 2^1040121113 is an apocalyptic number.

It is an amenable number.

1040121113 is a deficient number, since it is larger than the sum of its proper divisors (765595).

1040121113 is an equidigital number, since it uses as much as digits as its factorization.

1040121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765594.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1040121113 is about 32250.9087158796. The cubic root of 1040121113 is about 1013.1987313881.

Adding to 1040121113 its reverse (3111210401), we get a palindrome (4151331514).

The spelling of 1040121113 in words is "one billion, forty million, one hundred twenty-one thousand, one hundred thirteen".