2123120445254 has 16 divisors (see below), whose sum is σ = 3262542793776. Its totient is φ = 1035609148800.

The previous prime is 2123120445247. The next prime is 2123120445263. The reversal of 2123120445254 is 4525440213212.

It is a super-2 number, since 2×2123120445254² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714689 + ... + 2181059.

It is an arithmetic number, because the mean of its divisors is an integer number (203908924611).

Almost surely, 2^{2123120445254} is an apocalyptic number.

2123120445254 is a deficient number, since it is larger than the sum of its proper divisors (1139422348522).

2123120445254 is a wasteful number, since it uses less digits than its factorization.

2123120445254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484071.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2123120445254 its reverse (4525440213212), we get a palindrome (6648560658466).

The spelling of 2123120445254 in words is "two trillion, one hundred twenty-three billion, one hundred twenty million, four hundred forty-five thousand, two hundred fifty-four".