1329420100 has 36 divisors (see below), whose sum is σ = 2887315200. Its totient is φ = 531312160.

The previous prime is 1329420067. The next prime is 1329420133. The reversal of 1329420100 is 10249231.

It is an interprime number because it is at equal distance from previous prime (1329420067) and next prime (1329420133).

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 11 ways as a sum of consecutive naturals, for example, 126861 + ... + 136939.

It is an arithmetic number, because the mean of its divisors is an integer number (80203200).

Almost surely, 2^1329420100 is an apocalyptic number.

1329420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329420100 is an abundant number, since it is smaller than the sum of its proper divisors (1557895100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1329420100 is a wasteful number, since it uses less digits than its factorization.

1329420100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11412 (or 11405 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1329420100 is about 36461.2136386051. The cubic root of 1329420100 is about 1099.5645935186.

Adding to 1329420100 its reverse (10249231), we get a palindrome (1339669331).

The spelling of 1329420100 in words is "one billion, three hundred twenty-nine million, four hundred twenty thousand, one hundred".