212400303 has 8 divisors (see below), whose sum is σ = 283700400. Its totient is φ = 141350208.

The previous prime is 212400283. The next prime is 212400311. The reversal of 212400303 is 303004212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212400303 - 2¹⁰ = 212399279 is a prime.

It is a super-2 number, since 2×212400303² = 90227777428983618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212400323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60508 + ... + 63921.

It is an arithmetic number, because the mean of its divisors is an integer number (35462550).

Almost surely, 2^212400303 is an apocalyptic number.

212400303 is a deficient number, since it is larger than the sum of its proper divisors (71300097).

212400303 is a wasteful number, since it uses less digits than its factorization.

212400303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125001.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 212400303 is about 14573.9597570461. The cubic root of 212400303 is about 596.6482584682.

Adding to 212400303 its reverse (303004212), we get a palindrome (515404515).

The spelling of 212400303 in words is "two hundred twelve million, four hundred thousand, three hundred three".