2123654223232 has 16 divisors (see below), whose sum is σ = 4230717398100. Its totient is φ = 1061827111552.

The previous prime is 2123654223221. The next prime is 2123654223253. The reversal of 2123654223232 is 2323224563212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2123654223232² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123654223191 and 2123654223200.

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 as a sum of consecutive naturals, namely, 8295524182 + ... + 8295524437.

Almost surely, 2^{2123654223232} is an apocalyptic number.

It is an amenable number.

2123654223232 is a deficient number, since it is larger than the sum of its proper divisors (2107063174868).

2123654223232 is an equidigital number, since it uses as much as digits as its factorization.

2123654223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16591048633 (or 16591048621 counting only the distinct ones).

The product of its digits is 207360, while the sum is 37.

Adding to 2123654223232 its reverse (2323224563212), we get a palindrome (4446878786444).

The spelling of 2123654223232 in words is "two trillion, one hundred twenty-three billion, six hundred fifty-four million, two hundred twenty-three thousand, two hundred thirty-two".