1121004005515 has 16 divisors (see below), whose sum is σ = 1393444298880. Its totient is φ = 864725904000.

The previous prime is 1121004005467. The next prime is 1121004005519. The reversal of 1121004005515 is 5155004001211.

It is a de Polignac number, because none of the positive numbers 2^k-1121004005515 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121004005515.

It is not an unprimeable number, because it can be changed into a prime (1121004005519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5038284 + ... + 5256073.

It is an arithmetic number, because the mean of its divisors is an integer number (87090268680).

Almost surely, 2^{1121004005515} is an apocalyptic number.

1121004005515 is a deficient number, since it is larger than the sum of its proper divisors (272440293365).

1121004005515 is a wasteful number, since it uses less digits than its factorization.

1121004005515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10295142.

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 1121004005515 its reverse (5155004001211), we get a palindrome (6276008006726).

The spelling of 1121004005515 in words is "one trillion, one hundred twenty-one billion, four million, five thousand, five hundred fifteen".