1232134420 has 96 divisors (see below), whose sum is σ = 2984688000. Its totient is φ = 422553600.

The previous prime is 1232134399. The next prime is 1232134429. The reversal of 1232134420 is 244312321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1232134391 and 1232134400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232134429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174056 + ... + 1175104.

It is an arithmetic number, because the mean of its divisors is an integer number (31090500).

Almost surely, 2^1232134420 is an apocalyptic number.

1232134420 is a gapful number since it is divisible by the number (10) 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 1232134420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1492344000).

1232134420 is an abundant number, since it is smaller than the sum of its proper divisors (1752553580).

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

1232134420 is a wasteful number, since it uses less digits than its factorization.

1232134420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1232134420 is about 35101.7723199271. The cubic root of 1232134420 is about 1072.0606691828.

Adding to 1232134420 its reverse (244312321), we get a palindrome (1476446741).

The spelling of 1232134420 in words is "one billion, two hundred thirty-two million, one hundred thirty-four thousand, four hundred twenty".