1321320123334 has 32 divisors (see below), whose sum is σ = 2088725172480. Its totient is φ = 625159868832.

The previous prime is 1321320123283. The next prime is 1321320123401. The reversal of 1321320123334 is 4333210231231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154121472 + ... + 154130044.

It is an arithmetic number, because the mean of its divisors is an integer number (65272661640).

Almost surely, 2^{1321320123334} is an apocalyptic number.

1321320123334 is a deficient number, since it is larger than the sum of its proper divisors (767405049146).

1321320123334 is a wasteful number, since it uses less digits than its factorization.

1321320123334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1321320123334 its reverse (4333210231231), we get a palindrome (5654530354565).

The spelling of 1321320123334 in words is "one trillion, three hundred twenty-one billion, three hundred twenty million, one hundred twenty-three thousand, three hundred thirty-four".