1040120117 has 4 divisors (see below), whose sum is σ = 1040187660. Its totient is φ = 1040052576.

The previous prime is 1040120111. The next prime is 1040120131. The reversal of 1040120117 is 7110210401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 814189156 + 225930961 = 28534^2 + 15031^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040120117 - 2¹⁶ = 1040054581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040120095 and 1040120104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040120111) 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, 1859 + ... + 45647.

It is an arithmetic number, because the mean of its divisors is an integer number (260046915).

Almost surely, 2^1040120117 is an apocalyptic number.

It is an amenable number.

1040120117 is a deficient number, since it is larger than the sum of its proper divisors (67543).

1040120117 is an equidigital number, since it uses as much as digits as its factorization.

1040120117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67542.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1040120117 is about 32250.8932744506. The cubic root of 1040120117 is about 1013.1984079814.

Adding to 1040120117 its reverse (7110210401), we get a palindrome (8150330518).

The spelling of 1040120117 in words is "one billion, forty million, one hundred twenty thousand, one hundred seventeen".