1243020332 has 12 divisors (see below), whose sum is σ = 2196823776. Its totient is φ = 615356400.

The previous prime is 1243020293. The next prime is 1243020353. The reversal of 1243020332 is 2330203421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1537988 + ... + 1538795.

It is an arithmetic number, because the mean of its divisors is an integer number (183068648).

Almost surely, 2^1243020332 is an apocalyptic number.

It is an amenable number.

1243020332 is a deficient number, since it is larger than the sum of its proper divisors (953803444).

1243020332 is a wasteful number, since it uses less digits than its factorization.

1243020332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076888 (or 3076886 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1243020332 is about 35256.4934728342. The cubic root of 1243020332 is about 1075.2086364837.

Adding to 1243020332 its reverse (2330203421), we get a palindrome (3573223753).

The spelling of 1243020332 in words is "one billion, two hundred forty-three million, twenty thousand, three hundred thirty-two".