1232141220 has 84 divisors (see below), whose sum is σ = 3879516060. Its totient is φ = 328567104.

The previous prime is 1232141213. The next prime is 1232141233. The reversal of 1232141220 is 221412321.

It is a happy number.

1232141220 is a `hidden beast` number, since 1 + 232 + 1 + 412 + 20 = 666.

1232141220 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 646888356 + 585252864 = 25434^2 + 24192^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1232141193 and 1232141202.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 27675 + ... + 56834.

It is an arithmetic number, because the mean of its divisors is an integer number (46184715).

Almost surely, 2^1232141220 is an apocalyptic number.

1232141220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232141220 is an abundant number, since it is smaller than the sum of its proper divisors (2647374840).

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

1232141220 is an equidigital number, since it uses as much as digits as its factorization.

1232141220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84536 (or 84519 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1232141220 is about 35101.8691809995. The cubic root of 1232141220 is about 1072.0626413700.

Adding to 1232141220 its reverse (221412321), we get a palindrome (1453553541).

The spelling of 1232141220 in words is "one billion, two hundred thirty-two million, one hundred forty-one thousand, two hundred twenty".