20123120122 has 16 divisors (see below), whose sum is σ = 34625024640. Its totient is φ = 8592132528.

The previous prime is 20123120119. The next prime is 20123120219. The reversal of 20123120122 is 22102132102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20123120096 and 20123120105.

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, 2667918 + ... + 2675449.

It is an arithmetic number, because the mean of its divisors is an integer number (2164064040).

Almost surely, 2^20123120122 is an apocalyptic number.

20123120122 is a deficient number, since it is larger than the sum of its proper divisors (14501904518).

20123120122 is a wasteful number, since it uses less digits than its factorization.

20123120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343645.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20123120122 its reverse (22102132102), we get a palindrome (42225252224).

The spelling of 20123120122 in words is "twenty billion, one hundred twenty-three million, one hundred twenty thousand, one hundred twenty-two".