1261062304322 has 16 divisors (see below), whose sum is σ = 1894181889600. Its totient is φ = 629668607760.

The previous prime is 1261062304309. The next prime is 1261062304349. The reversal of 1261062304322 is 2234032601621.

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 7 ways as a sum of consecutive naturals, for example, 9902372 + ... + 10028912.

It is an arithmetic number, because the mean of its divisors is an integer number (118386368100).

Almost surely, 2^{1261062304322} is an apocalyptic number.

1261062304322 is a deficient number, since it is larger than the sum of its proper divisors (633119585278).

1261062304322 is a wasteful number, since it uses less digits than its factorization.

1261062304322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133321.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 1261062304322 its reverse (2234032601621), we get a palindrome (3495094905943).

The spelling of 1261062304322 in words is "one trillion, two hundred sixty-one billion, sixty-two million, three hundred four thousand, three hundred twenty-two".