212303131 has 8 divisors (see below), whose sum is σ = 224960000. Its totient is φ = 199794600.

The previous prime is 212303071. The next prime is 212303137. The reversal of 212303131 is 131303212.

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

It is a cyclic number.

It is not a de Polignac number, because 212303131 - 2¹³ = 212294939 is a prime.

It is a super-2 number, since 2×212303131² = 90145238864806322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212303137) 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 7 ways as a sum of consecutive naturals, for example, 34131 + ... + 39868.

It is an arithmetic number, because the mean of its divisors is an integer number (28120000).

Almost surely, 2^212303131 is an apocalyptic number.

212303131 is a deficient number, since it is larger than the sum of its proper divisors (12656869).

212303131 is a wasteful number, since it uses less digits than its factorization.

212303131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74169.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 212303131 is about 14570.6256214344. The cubic root of 212303131 is about 596.5572567960.

Adding to 212303131 its reverse (131303212), we get a palindrome (343606343).

The spelling of 212303131 in words is "two hundred twelve million, three hundred three thousand, one hundred thirty-one".