211220101002323 has 4 divisors (see below), whose sum is σ = 241394401145520. Its totient is φ = 181045800859128.

The previous prime is 211220101002307. The next prime is 211220101002331. The reversal of 211220101002323 is 323200101022112.

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 211220101002323 - 2⁴ = 211220101002307 is a prime.

It is a super-2 number, since 2×211220101002323² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211220101002295 and 211220101002304.

It is not an unprimeable number, because it can be changed into a prime (211220101062323) 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, 15087150071588 + ... + 15087150071601.

It is an arithmetic number, because the mean of its divisors is an integer number (60348600286380).

Almost surely, 2^{211220101002323} is an apocalyptic number.

211220101002323 is a deficient number, since it is larger than the sum of its proper divisors (30174300143197).

211220101002323 is an equidigital number, since it uses as much as digits as its factorization.

211220101002323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30174300143196.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211220101002323 its reverse (323200101022112), we get a palindrome (534420202024435).

The spelling of 211220101002323 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred one million, two thousand, three hundred twenty-three".