1232541220 has 24 divisors (see below), whose sum is σ = 2602644408. Its totient is φ = 490291200.

The previous prime is 1232541203. The next prime is 1232541253. The reversal of 1232541220 is 221452321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 99680256 + 1132860964 = 9984^2 + 33658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1232541191 and 1232541200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166621 + ... + 173860.

It is an arithmetic number, because the mean of its divisors is an integer number (108443517).

Almost surely, 2^1232541220 is an apocalyptic number.

1232541220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232541220 is an abundant number, since it is smaller than the sum of its proper divisors (1370103188).

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

1232541220 is a wasteful number, since it uses less digits than its factorization.

1232541220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340671 (or 340669 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1232541220 is about 35107.5664209298. The cubic root of 1232541220 is about 1072.1786396159.

Adding to 1232541220 its reverse (221452321), we get a palindrome (1453993541).

The spelling of 1232541220 in words is "one billion, two hundred thirty-two million, five hundred forty-one thousand, two hundred twenty".