211220132303 has 2 divisors, whose sum is σ = 211220132304. Its totient is φ = 211220132302.

The previous prime is 211220132287. The next prime is 211220132329. The reversal of 211220132303 is 303231022112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211220132303 - 2⁴ = 211220132287 is a prime.

It is a super-2 number, since 2×211220132303² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211220132353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610066151 + 105610066152.

It is an arithmetic number, because the mean of its divisors is an integer number (105610066152).

Almost surely, 2^211220132303 is an apocalyptic number.

211220132303 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220132303 is an equidigital number, since it uses as much as digits as its factorization.

211220132303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211220132303 its reverse (303231022112), we get a palindrome (514451154415).

The spelling of 211220132303 in words is "two hundred eleven billion, two hundred twenty million, one hundred thirty-two thousand, three hundred three".