123211401235 has 32 divisors (see below), whose sum is σ = 166187427840. Its totient is φ = 87011303808.

The previous prime is 123211401223. The next prime is 123211401241. The reversal of 123211401235 is 532104112321.

It is not a de Polignac number, because 123211401235 - 2¹⁷ = 123211270163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10918326 + ... + 10929604.

It is an arithmetic number, because the mean of its divisors is an integer number (5193357120).

Almost surely, 2^123211401235 is an apocalyptic number.

123211401235 is a deficient number, since it is larger than the sum of its proper divisors (42976026605).

123211401235 is a wasteful number, since it uses less digits than its factorization.

123211401235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18627.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 123211401235 its reverse (532104112321), we get a palindrome (655315513556).

The spelling of 123211401235 in words is "one hundred twenty-three billion, two hundred eleven million, four hundred one thousand, two hundred thirty-five".