1331323321000 has 64 divisors (see below), whose sum is σ = 3150300114000. Its totient is φ = 526545817600.

The previous prime is 1331323320953. The next prime is 1331323321037. The reversal of 1331323321000 is 1233231331.

It can be written as a sum of positive squares in 8 ways, for example, as 94294441476 + 1237028879524 = 307074^2 + 1112218^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7390345 + ... + 7568344.

Almost surely, 2^{1331323321000} is an apocalyptic number.

1331323321000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331323321000 is an abundant number, since it is smaller than the sum of its proper divisors (1818976793000).

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

1331323321000 is a wasteful number, since it uses less digits than its factorization.

1331323321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958799 (or 14958785 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1331323321000 its reverse (1233231331), we get a palindrome (1332556552331).

The spelling of 1331323321000 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand".