1321135108 has 12 divisors (see below), whose sum is σ = 2312859472. Its totient is φ = 660318120.

The previous prime is 1321135043. The next prime is 1321135129. The reversal of 1321135108 is 8015311231.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 50178 + ... + 71833.

Almost surely, 2^1321135108 is an apocalyptic number.

It is an amenable number.

1321135108 is a deficient number, since it is larger than the sum of its proper divisors (991724364).

1321135108 is a wasteful number, since it uses less digits than its factorization.

1321135108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124722 (or 124720 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1321135108 is about 36347.4223020010. The cubic root of 1321135108 is about 1097.2756571557.

Adding to 1321135108 its reverse (8015311231), we get a palindrome (9336446339).

The spelling of 1321135108 in words is "one billion, three hundred twenty-one million, one hundred thirty-five thousand, one hundred eight".