1431221002 has 8 divisors (see below), whose sum is σ = 2147026212. Its totient is φ = 715545600.

The previous prime is 1431220943. The next prime is 1431221009. The reversal of 1431221002 is 2001221341.

It can be written as a sum of positive squares in 2 ways, for example, as 1088934001 + 342287001 = 32999^2 + 18501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1431221009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752 + ... + 53572.

Almost surely, 2^1431221002 is an apocalyptic number.

1431221002 is a deficient number, since it is larger than the sum of its proper divisors (715805210).

1431221002 is a wasteful number, since it uses less digits than its factorization.

1431221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64904.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1431221002 is about 37831.4816257571. The cubic root of 1431221002 is about 1126.9437349269.

Adding to 1431221002 its reverse (2001221341), we get a palindrome (3432442343).

The spelling of 1431221002 in words is "one billion, four hundred thirty-one million, two hundred twenty-one thousand, two".