1321030212000 has 96 divisors (see below), whose sum is σ = 4327695013824. Its totient is φ = 352274720000.

The previous prime is 1321030211987. The next prime is 1321030212013. The reversal of 1321030212000 is 2120301231.

It is an interprime number because it is at equal distance from previous prime (1321030211987) and next prime (1321030212013).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 55030926 + ... + 55054925.

It is an arithmetic number, because the mean of its divisors is an integer number (45080156394).

Almost surely, 2^{1321030212000} is an apocalyptic number.

1321030212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321030212000 is an abundant number, since it is smaller than the sum of its proper divisors (3006664801824).

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

1321030212000 is a wasteful number, since it uses less digits than its factorization.

1321030212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110085879 (or 110085861 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1321030212000 its reverse (2120301231), we get a palindrome (1323150513231).

The spelling of 1321030212000 in words is "one trillion, three hundred twenty-one billion, thirty million, two hundred twelve thousand".