1013221432 has 16 divisors (see below), whose sum is σ = 1909436760. Its totient is φ = 504038304.

The previous prime is 1013221423. The next prime is 1013221463. The reversal of 1013221432 is 2341223101.

It is a happy number.

It is a congruent number.

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, 319878 + ... + 323029.

Almost surely, 2^1013221432 is an apocalyptic number.

It is an amenable number.

1013221432 is a deficient number, since it is larger than the sum of its proper divisors (896215328).

1013221432 is a wasteful number, since it uses less digits than its factorization.

1013221432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643110 (or 643106 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1013221432 is about 31831.1393449873. The cubic root of 1013221432 is about 1004.3878625023.

Adding to 1013221432 its reverse (2341223101), we get a palindrome (3354444533).

The spelling of 1013221432 in words is "one billion, thirteen million, two hundred twenty-one thousand, four hundred thirty-two".