53213235113 has 4 divisors (see below), whose sum is σ = 53302971348. Its totient is φ = 53123498880.

The previous prime is 53213235109. The next prime is 53213235121. The reversal of 53213235113 is 31153231235.

It is a happy number.

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 25017116224 + 28196118889 = 158168^2 + 167917^2 .

It is a cyclic number.

It is not a de Polignac number, because 53213235113 - 2² = 53213235109 is a prime.

It is a super-2 number, since 2×53213235113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53213265113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44867228 + ... + 44868413.

It is an arithmetic number, because the mean of its divisors is an integer number (13325742837).

Almost surely, 2^53213235113 is an apocalyptic number.

It is an amenable number.

53213235113 is a deficient number, since it is larger than the sum of its proper divisors (89736235).

53213235113 is an equidigital number, since it uses as much as digits as its factorization.

53213235113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89736234.

The product of its digits is 8100, while the sum is 29.

Adding to 53213235113 its reverse (31153231235), we get a palindrome (84366466348).

The spelling of 53213235113 in words is "fifty-three billion, two hundred thirteen million, two hundred thirty-five thousand, one hundred thirteen".