1321401352 has 16 divisors (see below), whose sum is σ = 2535247440. Its totient is φ = 645335376.

The previous prime is 1321401349. The next prime is 1321401371. The reversal of 1321401352 is 2531041231.

It is a happy number.

It is a super-2 number, since 2×1321401352² = 3492203066134855808, which contains 22 as substring.

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, 1920298 + ... + 1920985.

It is an arithmetic number, because the mean of its divisors is an integer number (158452965).

Almost surely, 2^1321401352 is an apocalyptic number.

It is an amenable number.

1321401352 is a deficient number, since it is larger than the sum of its proper divisors (1213846088).

1321401352 is a wasteful number, since it uses less digits than its factorization.

1321401352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841332 (or 3841328 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1321401352 is about 36351.0846055520. The cubic root of 1321401352 is about 1097.3493623192.

Adding to 1321401352 its reverse (2531041231), we get a palindrome (3852442583).

The spelling of 1321401352 in words is "one billion, three hundred twenty-one million, four hundred one thousand, three hundred fifty-two".