1321270076208 has 90 divisors (see below), whose sum is σ = 3432126249876. Its totient is φ = 438005040000.

The previous prime is 1321270076201. The next prime is 1321270076227. The reversal of 1321270076208 is 8026700721231.

It is a super-2 number, since 2×1321270076208² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1321270076201) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 1998895398 + ... + 1998896058.

Almost surely, 2^{1321270076208} is an apocalyptic number.

It is an amenable number.

1321270076208 is an abundant number, since it is smaller than the sum of its proper divisors (2110856173668).

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

1321270076208 is an frugal number, since it uses more digits than its factorization.

1321270076208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

Adding to 1321270076208 its reverse (8026700721231), we get a palindrome (9347970797439).

The spelling of 1321270076208 in words is "one trillion, three hundred twenty-one billion, two hundred seventy million, seventy-six thousand, two hundred eight".