2120123201444 has 48 divisors (see below), whose sum is σ = 3892330106112. Its totient is φ = 1008526159872.

The previous prime is 2120123201419. The next prime is 2120123201447. The reversal of 2120123201444 is 4441023210212.

It is not an unprimeable number, because it can be changed into a prime (2120123201447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146177897 + ... + 146192399.

It is an arithmetic number, because the mean of its divisors is an integer number (81090210544).

Almost surely, 2^{2120123201444} is an apocalyptic number.

It is an amenable number.

2120123201444 is a deficient number, since it is larger than the sum of its proper divisors (1772206904668).

2120123201444 is a wasteful number, since it uses less digits than its factorization.

2120123201444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956 (or 22954 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 2120123201444 its reverse (4441023210212), we get a palindrome (6561146411656).

The spelling of 2120123201444 in words is "two trillion, one hundred twenty billion, one hundred twenty-three million, two hundred one thousand, four hundred forty-four".