1321421410 has 16 divisors (see below), whose sum is σ = 2380139712. Its totient is φ = 528217200.

The previous prime is 1321421393. The next prime is 1321421473. The reversal of 1321421410 is 141241231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27846 + ... + 58465.

It is an arithmetic number, because the mean of its divisors is an integer number (148758732).

Almost surely, 2^1321421410 is an apocalyptic number.

1321421410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321421410 is a deficient number, since it is larger than the sum of its proper divisors (1058718302).

1321421410 is a wasteful number, since it uses less digits than its factorization.

1321421410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87849.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1321421410 is about 36351.3604972359. The cubic root of 1321421410 is about 1097.3549146373.

Adding to 1321421410 its reverse (141241231), we get a palindrome (1462662641).

The spelling of 1321421410 in words is "one billion, three hundred twenty-one million, four hundred twenty-one thousand, four hundred ten".