1321312200354 has 16 divisors (see below), whose sum is σ = 2936249334240. Its totient is φ = 440437400100.

The previous prime is 1321312200349. The next prime is 1321312200367. The reversal of 1321312200354 is 4530022131231.

1321312200354 is a `hidden beast` number, since 1 + 321 + 312 + 20 + 0 + 3 + 5 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 12234372172 + ... + 12234372279.

It is an arithmetic number, because the mean of its divisors is an integer number (183515583390).

Almost surely, 2^{1321312200354} is an apocalyptic number.

1321312200354 is an abundant number, since it is smaller than the sum of its proper divisors (1614937133886).

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

1321312200354 is a wasteful number, since it uses less digits than its factorization.

1321312200354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24468744462 (or 24468744456 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1321312200354 its reverse (4530022131231), we get a palindrome (5851334331585).

The spelling of 1321312200354 in words is "one trillion, three hundred twenty-one billion, three hundred twelve million, two hundred thousand, three hundred fifty-four".