1115212430405 has 32 divisors (see below), whose sum is σ = 1355673631200. Its totient is φ = 880610476032.

The previous prime is 1115212430377. The next prime is 1115212430429. The reversal of 1115212430405 is 5040342125111.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 206580249121 + 908632181284 = 454511^2 + 953222^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115212430405 - 2²⁴ = 1115195653189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358702991 + ... + 358706099.

It is an arithmetic number, because the mean of its divisors is an integer number (42364800975).

Almost surely, 2^{1115212430405} is an apocalyptic number.

It is an amenable number.

1115212430405 is a deficient number, since it is larger than the sum of its proper divisors (240461200795).

1115212430405 is a wasteful number, since it uses less digits than its factorization.

1115212430405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1115212430405 its reverse (5040342125111), we get a palindrome (6155554555516).

The spelling of 1115212430405 in words is "one trillion, one hundred fifteen billion, two hundred twelve million, four hundred thirty thousand, four hundred five".