213182903773 has 4 divisors (see below), whose sum is σ = 243637604320. Its totient is φ = 182728203228.

The previous prime is 213182903683. The next prime is 213182903831. The reversal of 213182903773 is 377309281312.

It is a happy number.

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 213182903773 - 2⁹ = 213182903261 is a prime.

It is a super-2 number, since 2×213182903773² (a number of 23 digits) contains 22 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 (213182903173) 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, 15227350263 + ... + 15227350276.

It is an arithmetic number, because the mean of its divisors is an integer number (60909401080).

Almost surely, 2^213182903773 is an apocalyptic number.

It is an amenable number.

213182903773 is a deficient number, since it is larger than the sum of its proper divisors (30454700547).

213182903773 is an equidigital number, since it uses as much as digits as its factorization.

213182903773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30454700546.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 213182903773 in words is "two hundred thirteen billion, one hundred eighty-two million, nine hundred three thousand, seven hundred seventy-three".