211220132323 has 4 divisors (see below), whose sum is σ = 211235714560. Its totient is φ = 211204550088.

The previous prime is 211220132303. The next prime is 211220132329. The reversal of 211220132323 is 323231022112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211220132323 - 2¹³ = 211220124131 is a prime.

It is a super-2 number, since 2×211220132323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211220132294 and 211220132303.

It is not an unprimeable number, because it can be changed into a prime (211220132329) 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, 7770768 + ... + 7797901.

It is an arithmetic number, because the mean of its divisors is an integer number (52808928640).

Almost surely, 2^211220132323 is an apocalyptic number.

211220132323 is a deficient number, since it is larger than the sum of its proper divisors (15582237).

211220132323 is a wasteful number, since it uses less digits than its factorization.

211220132323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15582236.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 211220132323 its reverse (323231022112), we get a palindrome (534451154435).

The spelling of 211220132323 in words is "two hundred eleven billion, two hundred twenty million, one hundred thirty-two thousand, three hundred twenty-three".