20123123224 has 16 divisors (see below), whose sum is σ = 37733275800. Its totient is φ = 10060916352.

The previous prime is 20123123213. The next prime is 20123123233. The reversal of 20123123224 is 42232132102.

It is a junction number, because it is equal to n+sod(n) for n = 20123123195 and 20123123204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67999 + ... + 211825.

Almost surely, 2^20123123224 is an apocalyptic number.

It is an amenable number.

20123123224 is a deficient number, since it is larger than the sum of its proper divisors (17610152576).

20123123224 is a wasteful number, since it uses less digits than its factorization.

20123123224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161322 (or 161318 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20123123224 its reverse (42232132102), we get a palindrome (62355255326).

The spelling of 20123123224 in words is "twenty billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred twenty-four".