1321241402 has 8 divisors (see below), whose sum is σ = 2134313076. Its totient is φ = 609803712.

The previous prime is 1321241333. The next prime is 1321241419. The reversal of 1321241402 is 2041421231.

It can be written as a sum of positive squares in 2 ways, for example, as 1307617921 + 13623481 = 36161^2 + 3691^2 .

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

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, 25408463 + ... + 25408514.

Almost surely, 2^1321241402 is an apocalyptic number.

1321241402 is a deficient number, since it is larger than the sum of its proper divisors (813071674).

1321241402 is a wasteful number, since it uses less digits than its factorization.

1321241402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50816992.

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

The square root of 1321241402 is about 36348.8844670645. The cubic root of 1321241402 is about 1097.3050840453.

Adding to 1321241402 its reverse (2041421231), we get a palindrome (3362662633).

The spelling of 1321241402 in words is "one billion, three hundred twenty-one million, two hundred forty-one thousand, four hundred two".