2123122243430 has 128 divisors (see below), whose sum is σ = 4202312140800. Its totient is φ = 769579605504.

The previous prime is 2123122243381. The next prime is 2123122243441. The reversal of 2123122243430 is 343422213212.

It is a junction number, because it is equal to n+sod(n) for n = 2123122243393 and 2123122243402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91136864 + ... + 91160156.

It is an arithmetic number, because the mean of its divisors is an integer number (32830563600).

Almost surely, 2^{2123122243430} is an apocalyptic number.

2123122243430 is a deficient number, since it is larger than the sum of its proper divisors (2079189897370).

2123122243430 is a wasteful number, since it uses less digits than its factorization.

2123122243430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23598.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 2123122243430 its reverse (343422213212), we get a palindrome (2466544456642).

The spelling of 2123122243430 in words is "two trillion, one hundred twenty-three billion, one hundred twenty-two million, two hundred forty-three thousand, four hundred thirty".