11345212533 has 4 divisors (see below), whose sum is σ = 15126950048. Its totient is φ = 7563475020.

The previous prime is 11345212511. The next prime is 11345212559. The reversal of 11345212533 is 33521254311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33521254311 = 3 ⋅11173751437.

It is not a de Polignac number, because 11345212533 - 2⁶ = 11345212469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11345212533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11345212573) 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, 1890868753 + ... + 1890868758.

It is an arithmetic number, because the mean of its divisors is an integer number (3781737512).

Almost surely, 2^11345212533 is an apocalyptic number.

It is an amenable number.

11345212533 is a deficient number, since it is larger than the sum of its proper divisors (3781737515).

11345212533 is an equidigital number, since it uses as much as digits as its factorization.

11345212533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781737514.

The product of its digits is 10800, while the sum is 30.

Adding to 11345212533 its reverse (33521254311), we get a palindrome (44866466844).

The spelling of 11345212533 in words is "eleven billion, three hundred forty-five million, two hundred twelve thousand, five hundred thirty-three".