1240001117 has 2 divisors, whose sum is σ = 1240001118. Its totient is φ = 1240001116.

The previous prime is 1240001083. The next prime is 1240001129. The reversal of 1240001117 is 7111000421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1055340196 + 184660921 = 32486^2 + 13589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240001117 - 2²⁴ = 1223223901 is a prime.

It is a super-2 number, since 2×1240001117² = 3075205540322495378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1240001095 and 1240001104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240001177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620000558 + 620000559.

It is an arithmetic number, because the mean of its divisors is an integer number (620000559).

Almost surely, 2^1240001117 is an apocalyptic number.

It is an amenable number.

1240001117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240001117 is an equidigital number, since it uses as much as digits as its factorization.

1240001117 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1240001117 is about 35213.6495836487. The cubic root of 1240001117 is about 1074.3373935788.

Adding to 1240001117 its reverse (7111000421), we get a palindrome (8351001538).

The spelling of 1240001117 in words is "one billion, two hundred forty million, one thousand, one hundred seventeen".