20630623223 has 6 divisors (see below), whose sum is σ = 23998888296. Its totient is φ = 17683391292.

The previous prime is 20630623217. The next prime is 20630623243. The reversal of 20630623223 is 32232603602.

It is not a de Polignac number, because 20630623223 - 2⁶ = 20630623159 is a prime.

It is a super-2 number, since 2×20630623223² (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 (20630623243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210516515 + ... + 210516612.

It is an arithmetic number, because the mean of its divisors is an integer number (3999814716).

Almost surely, 2^20630623223 is an apocalyptic number.

20630623223 is a deficient number, since it is larger than the sum of its proper divisors (3368265073).

20630623223 is an equidigital number, since it uses as much as digits as its factorization.

20630623223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421033141 (or 421033134 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

The spelling of 20630623223 in words is "twenty billion, six hundred thirty million, six hundred twenty-three thousand, two hundred twenty-three".