1321153106 has 48 divisors (see below), whose sum is σ = 2581617600. Its totient is φ = 495129024.

The previous prime is 1321153091. The next prime is 1321153121. The reversal of 1321153106 is 6013511231.

It is an interprime number because it is at equal distance from previous prime (1321153091) and next prime (1321153121).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30260 + ... + 59648.

It is an arithmetic number, because the mean of its divisors is an integer number (53783700).

Almost surely, 2^1321153106 is an apocalyptic number.

1321153106 is a deficient number, since it is larger than the sum of its proper divisors (1260464494).

1321153106 is a wasteful number, since it uses less digits than its factorization.

1321153106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29443 (or 29430 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1321153106 is about 36347.6698840517. The cubic root of 1321153106 is about 1097.2806399107.

Adding to 1321153106 its reverse (6013511231), we get a palindrome (7334664337).

The spelling of 1321153106 in words is "one billion, three hundred twenty-one million, one hundred fifty-three thousand, one hundred six".