1321060268634 has 16 divisors (see below), whose sum is σ = 2642143251072. Its totient is φ = 440349637248.

The previous prime is 1321060268611. The next prime is 1321060268729. The reversal of 1321060268634 is 4368620601231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137074 + ... + 1631229.

It is an arithmetic number, because the mean of its divisors is an integer number (165133953192).

Almost surely, 2^{1321060268634} is an apocalyptic number.

1321060268634 is an abundant number, since it is smaller than the sum of its proper divisors (1321082982438).

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

1321060268634 is a wasteful number, since it uses less digits than its factorization.

1321060268634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892821.

The product of its (nonzero) digits is 248832, while the sum is 42.

Adding to 1321060268634 its reverse (4368620601231), we get a palindrome (5689680869865).

The spelling of 1321060268634 in words is "one trillion, three hundred twenty-one billion, sixty million, two hundred sixty-eight thousand, six hundred thirty-four".