1215403411134 has 64 divisors (see below), whose sum is σ = 2955554645760. Its totient is φ = 328394949120.

The previous prime is 1215403411127. The next prime is 1215403411177. The reversal of 1215403411134 is 4311143045121.

It is a happy number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 28485189 + ... + 28527824.

It is an arithmetic number, because the mean of its divisors is an integer number (46180541340).

Almost surely, 2^{1215403411134} is an apocalyptic number.

1215403411134 is an abundant number, since it is smaller than the sum of its proper divisors (1740151234626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215403411134 is a wasteful number, since it uses less digits than its factorization.

1215403411134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57013065.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 1215403411134 its reverse (4311143045121), we get a palindrome (5526546456255).

The spelling of 1215403411134 in words is "one trillion, two hundred fifteen billion, four hundred three million, four hundred eleven thousand, one hundred thirty-four".