1331323002 has 24 divisors (see below), whose sum is σ = 2888121600. Its totient is φ = 443222280.

The previous prime is 1331322991. The next prime is 1331323033. The reversal of 1331323002 is 2003231331.

1331323002 is a `hidden beast` number, since 1 + 331 + 32 + 300 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31002 + ... + 60197.

It is an arithmetic number, because the mean of its divisors is an integer number (120338400).

Almost surely, 2^1331323002 is an apocalyptic number.

1331323002 is an abundant number, since it is smaller than the sum of its proper divisors (1556798598).

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

1331323002 is a wasteful number, since it uses less digits than its factorization.

1331323002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92018 (or 92015 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1331323002 is about 36487.2991875255. The cubic root of 1331323002 is about 1100.0889740703.

Adding to 1331323002 its reverse (2003231331), we get a palindrome (3334554333).

It can be divided in two parts, 13313 and 23002, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 1331323002 in words is "one billion, three hundred thirty-one million, three hundred twenty-three thousand, two".