123251231235 has 32 divisors (see below), whose sum is σ = 215456060160. Its totient is φ = 59667440000.

The previous prime is 123251231203. The next prime is 123251231251. The reversal of 123251231235 is 532132152321.

It is not a de Polignac number, because 123251231235 - 2⁵ = 123251231203 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, 458016 + ... + 675485.

It is an arithmetic number, because the mean of its divisors is an integer number (6733001880).

Almost surely, 2^123251231235 is an apocalyptic number.

123251231235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123251231235 is a deficient number, since it is larger than the sum of its proper divisors (92204828925).

123251231235 is a wasteful number, since it uses less digits than its factorization.

123251231235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134179.

The product of its digits is 10800, while the sum is 30.

Adding to 123251231235 its reverse (532132152321), we get a palindrome (655383383556).

The spelling of 123251231235 in words is "one hundred twenty-three billion, two hundred fifty-one million, two hundred thirty-one thousand, two hundred thirty-five".