123211401234 has 16 divisors (see below), whose sum is σ = 246434348160. Its totient is φ = 41068542800.

The previous prime is 123211401223. The next prime is 123211401241. The reversal of 123211401234 is 432104112321.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339117 + ... + 601184.

It is an arithmetic number, because the mean of its divisors is an integer number (15402146760).

Almost surely, 2^123211401234 is an apocalyptic number.

123211401234 is an abundant number, since it is smaller than the sum of its proper divisors (123222946926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123211401234 is a wasteful number, since it uses less digits than its factorization.

123211401234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962145.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123211401234 its reverse (432104112321), we get a palindrome (555315513555).

The spelling of 123211401234 in words is "one hundred twenty-three billion, two hundred eleven million, four hundred one thousand, two hundred thirty-four".