2135187273329 has 4 divisors (see below), whose sum is σ = 2329295207280. Its totient is φ = 1941079339380.

The previous prime is 2135187273257. The next prime is 2135187273379. The reversal of 2135187273329 is 9233727815312.

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 a cyclic number.

It is not a de Polignac number, because 2135187273329 - 2³² = 2130892306033 is a prime.

It is a super-2 number, since 2×2135187273329² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135187273379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97053966959 + ... + 97053966980.

It is an arithmetic number, because the mean of its divisors is an integer number (582323801820).

Almost surely, 2^{2135187273329} is an apocalyptic number.

It is an amenable number.

2135187273329 is a deficient number, since it is larger than the sum of its proper divisors (194107933951).

2135187273329 is a wasteful number, since it uses less digits than its factorization.

2135187273329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194107933950.

The product of its digits is 3810240, while the sum is 53.

It can be divided in two parts, 213518 and 7273329, that added together give a palindrome (7486847).

The spelling of 2135187273329 in words is "two trillion, one hundred thirty-five billion, one hundred eighty-seven million, two hundred seventy-three thousand, three hundred twenty-nine".