1232142385136 has 80 divisors (see below), whose sum is σ = 2649204294240. Its totient is φ = 554810181120.

The previous prime is 1232142385087. The next prime is 1232142385147. The reversal of 1232142385136 is 6315832412321.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 1232142385093 and 1232142385102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013771 + ... + 1868693.

It is an arithmetic number, because the mean of its divisors is an integer number (33115053678).

Almost surely, 2^{1232142385136} is an apocalyptic number.

1232142385136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232142385136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324602147120).

1232142385136 is an abundant number, since it is smaller than the sum of its proper divisors (1417061909104).

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

1232142385136 is an equidigital number, since it uses as much as digits as its factorization.

1232142385136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855011 (or 854979 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

Adding to 1232142385136 its reverse (6315832412321), we get a palindrome (7547974797457).

The spelling of 1232142385136 in words is "one trillion, two hundred thirty-two billion, one hundred forty-two million, three hundred eighty-five thousand, one hundred thirty-six".