1320980481 has 20 divisors (see below), whose sum is σ = 1982694384. Its totient is φ = 876468600.

The previous prime is 1320980471. The next prime is 1320980497. The reversal of 1320980481 is 1840890231.

It is not a de Polignac number, because 1320980481 - 2¹¹ = 1320978433 is a prime.

It is a super-2 number, since 2×1320980481² = 3489978862365982722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320980411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21555 + ... + 55736.

Almost surely, 2^1320980481 is an apocalyptic number.

It is an amenable number.

1320980481 is a deficient number, since it is larger than the sum of its proper divisors (661713903).

1320980481 is an equidigital number, since it uses as much as digits as its factorization.

1320980481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77514 (or 77505 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1320980481 is about 36345.2951700767. The cubic root of 1320980481 is about 1097.2328467316.

The spelling of 1320980481 in words is "one billion, three hundred twenty million, nine hundred eighty thousand, four hundred eighty-one".