2111323436153 has 4 divisors (see below), whose sum is σ = 2113415928180. Its totient is φ = 2109230944128.

The previous prime is 2111323436111. The next prime is 2111323436171. The reversal of 2111323436153 is 3516343231112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1150241235049 + 961082201104 = 1072493^2 + 980348^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111323436153 - 2¹⁶ = 2111323370617 is a prime.

It is a super-2 number, since 2×2111323436153² (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 (2111323436953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046244500 + ... + 1046246517.

It is an arithmetic number, because the mean of its divisors is an integer number (528353982045).

Almost surely, 2^{2111323436153} is an apocalyptic number.

It is an amenable number.

2111323436153 is a deficient number, since it is larger than the sum of its proper divisors (2092492027).

2111323436153 is a wasteful number, since it uses less digits than its factorization.

2111323436153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092492026.

The product of its digits is 38880, while the sum is 35.

Adding to 2111323436153 its reverse (3516343231112), we get a palindrome (5627666667265).

The spelling of 2111323436153 in words is "two trillion, one hundred eleven billion, three hundred twenty-three million, four hundred thirty-six thousand, one hundred fifty-three".