20213011223 has 8 divisors (see below), whose sum is σ = 21125581680. Its totient is φ = 19314812160.

The previous prime is 20213011211. The next prime is 20213011241. The reversal of 20213011223 is 32211031202.

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 20213011223 - 2⁸ = 20213010967 is a prime.

It is a super-2 number, since 2×20213011223² (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 (20213011283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3589973 + ... + 3595598.

It is an arithmetic number, because the mean of its divisors is an integer number (2640697710).

Almost surely, 2^20213011223 is an apocalyptic number.

20213011223 is a deficient number, since it is larger than the sum of its proper divisors (912570457).

20213011223 is an equidigital number, since it uses as much as digits as its factorization.

20213011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185697.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20213011223 its reverse (32211031202), we get a palindrome (52424042425).

The spelling of 20213011223 in words is "twenty billion, two hundred thirteen million, eleven thousand, two hundred twenty-three".