2123654223346 has 32 divisors (see below), whose sum is σ = 3252685621248. Its totient is φ = 1039671964800.

The previous prime is 2123654223331. The next prime is 2123654223371. The reversal of 2123654223346 is 6433224563212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20038296 + ... + 20143996.

It is an arithmetic number, because the mean of its divisors is an integer number (101646425664).

Almost surely, 2^{2123654223346} is an apocalyptic number.

2123654223346 is a deficient number, since it is larger than the sum of its proper divisors (1129031397902).

2123654223346 is a wasteful number, since it uses less digits than its factorization.

2123654223346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106866.

The product of its digits is 1244160, while the sum is 43.

Adding to 2123654223346 its reverse (6433224563212), we get a palindrome (8556878786558).

The spelling of 2123654223346 in words is "two trillion, one hundred twenty-three billion, six hundred fifty-four million, two hundred twenty-three thousand, three hundred forty-six".