1321310006 has 16 divisors (see below), whose sum is σ = 2170916640. Its totient is φ = 600351360.

The previous prime is 1321309991. The next prime is 1321310009. The reversal of 1321310006 is 6000131231.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321310009) 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, 669050 + ... + 671021.

It is an arithmetic number, because the mean of its divisors is an integer number (135682290).

Almost surely, 2^1321310006 is an apocalyptic number.

1321310006 is a deficient number, since it is larger than the sum of its proper divisors (849606634).

1321310006 is a wasteful number, since it uses less digits than its factorization.

1321310006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340119.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1321310006 is about 36349.8281426474. The cubic root of 1321310006 is about 1097.3240758346.

Adding to 1321310006 its reverse (6000131231), we get a palindrome (7321441237).

The spelling of 1321310006 in words is "one billion, three hundred twenty-one million, three hundred ten thousand, six".