45312233213 has 4 divisors (see below), whose sum is σ = 48797789628. Its totient is φ = 41826676800.

The previous prime is 45312233147. The next prime is 45312233269. The reversal of 45312233213 is 31233221354.

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 23092753369 + 22219479844 = 151963^2 + 149062^2 .

It is a cyclic number.

It is not a de Polignac number, because 45312233213 - 2²⁶ = 45245124349 is a prime.

It is a super-3 number, since 3×45312233213³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45311233213) 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, 1742778188 + ... + 1742778213.

It is an arithmetic number, because the mean of its divisors is an integer number (12199447407).

Almost surely, 2^45312233213 is an apocalyptic number.

It is an amenable number.

45312233213 is a deficient number, since it is larger than the sum of its proper divisors (3485556415).

45312233213 is a wasteful number, since it uses less digits than its factorization.

45312233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485556414.

The product of its digits is 12960, while the sum is 29.

Adding to 45312233213 its reverse (31233221354), we get a palindrome (76545454567).

The spelling of 45312233213 in words is "forty-five billion, three hundred twelve million, two hundred thirty-three thousand, two hundred thirteen".