1210530117 has 4 divisors (see below), whose sum is σ = 1614040160. Its totient is φ = 807020076.

The previous prime is 1210530107. The next prime is 1210530127. The reversal of 1210530117 is 7110350121.

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 an interprime number because it is at equal distance from previous prime (1210530107) and next prime (1210530127).

It is not a de Polignac number, because 1210530117 - 2¹⁰ = 1210529093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210530093 and 1210530102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210530107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201755017 + ... + 201755022.

It is an arithmetic number, because the mean of its divisors is an integer number (403510040).

Almost surely, 2^1210530117 is an apocalyptic number.

It is an amenable number.

1210530117 is a deficient number, since it is larger than the sum of its proper divisors (403510043).

1210530117 is an equidigital number, since it uses as much as digits as its factorization.

1210530117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403510042.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1210530117 is about 34792.6733235605. The cubic root of 1210530117 is about 1065.7578321895.

Adding to 1210530117 its reverse (7110350121), we get a palindrome (8320880238).

The spelling of 1210530117 in words is "one billion, two hundred ten million, five hundred thirty thousand, one hundred seventeen".