20223233311 has 4 divisors (see below), whose sum is σ = 20249808624. Its totient is φ = 20196658000.

The previous prime is 20223233291. The next prime is 20223233339. The reversal of 20223233311 is 11333232202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223233311 is a prime.

It is a super-2 number, since 2×20223233311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223233011) 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, 13286515 + ... + 13288036.

It is an arithmetic number, because the mean of its divisors is an integer number (5062452156).

Almost surely, 2^20223233311 is an apocalyptic number.

20223233311 is a deficient number, since it is larger than the sum of its proper divisors (26575313).

20223233311 is an equidigital number, since it uses as much as digits as its factorization.

20223233311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26575312.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20223233311 its reverse (11333232202), we get a palindrome (31556465513).

The spelling of 20223233311 in words is "twenty billion, two hundred twenty-three million, two hundred thirty-three thousand, three hundred eleven".