1321144202 has 16 divisors (see below), whose sum is σ = 2265604992. Its totient is φ = 566008080.

The previous prime is 1321144199. The next prime is 1321144207. The reversal of 1321144202 is 2024411231.

It is not an unprimeable number, because it can be changed into a prime (1321144207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29888 + ... + 59460.

It is an arithmetic number, because the mean of its divisors is an integer number (141600312).

Almost surely, 2^1321144202 is an apocalyptic number.

1321144202 is a deficient number, since it is larger than the sum of its proper divisors (944460790).

1321144202 is a wasteful number, since it uses less digits than its factorization.

1321144202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32773.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1321144202 is about 36347.5474000654. The cubic root of 1321144202 is about 1097.2781748396.

Adding to 1321144202 its reverse (2024411231), we get a palindrome (3345555433).

The spelling of 1321144202 in words is "one billion, three hundred twenty-one million, one hundred forty-four thousand, two hundred two".