23123123122 has 16 divisors (see below), whose sum is σ = 37856253312. Its totient is φ = 10505395120.

The previous prime is 23123123099. The next prime is 23123123131. The reversal of 23123123122 is 22132132132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23123123093 and 23123123102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209353 + ... + 300124.

It is an arithmetic number, because the mean of its divisors is an integer number (2366015832).

Almost surely, 2^23123123122 is an apocalyptic number.

23123123122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23123123122 is a deficient number, since it is larger than the sum of its proper divisors (14733130190).

23123123122 is a wasteful number, since it uses less digits than its factorization.

23123123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511553.

The product of its digits is 864, while the sum is 22.

Adding to 23123123122 its reverse (22132132132), we get a palindrome (45255255254).

The spelling of 23123123122 in words is "twenty-three billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred twenty-two".