1321223013000 has 192 divisors, whose sum is σ = 4871709947520. Its totient is φ = 320296464000.

The previous prime is 1321223012999. The next prime is 1321223013007. The reversal of 1321223013000 is 3103221231.

1321223013000 is a `hidden beast` number, since 132 + 1 + 2 + 230 + 1 + 300 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1321223013007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6573844 + ... + 6771843.

It is an arithmetic number, because the mean of its divisors is an integer number (25373489310).

Almost surely, 2^{1321223013000} is an apocalyptic number.

1321223013000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321223013000 is an abundant number, since it is smaller than the sum of its proper divisors (3550486934520).

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

1321223013000 is a wasteful number, since it uses less digits than its factorization.

1321223013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13345725 (or 13345708 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1321223013000 its reverse (3103221231), we get a palindrome (1324326234231).

The spelling of 1321223013000 in words is "one trillion, three hundred twenty-one billion, two hundred twenty-three million, thirteen thousand".