1211120512315 has 16 divisors (see below), whose sum is σ = 1661259365568. Its totient is φ = 830335591296.

The previous prime is 1211120512307. The next prime is 1211120512337. The reversal of 1211120512315 is 5132150211121.

It is a cyclic number.

It is not a de Polignac number, because 1211120512315 - 2³ = 1211120512307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211120512315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2862772 + ... + 3258481.

It is an arithmetic number, because the mean of its divisors is an integer number (103828710348).

Almost surely, 2^{1211120512315} is an apocalyptic number.

1211120512315 is a deficient number, since it is larger than the sum of its proper divisors (450138853253).

1211120512315 is an equidigital number, since it uses as much as digits as its factorization.

1211120512315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126918.

The product of its (nonzero) digits is 600, while the sum is 25.

Adding to 1211120512315 its reverse (5132150211121), we get a palindrome (6343270723436).

The spelling of 1211120512315 in words is "one trillion, two hundred eleven billion, one hundred twenty million, five hundred twelve thousand, three hundred fifteen".