1320220471 has 8 divisors (see below), whose sum is σ = 1341501840. Its totient is φ = 1299107712.

The previous prime is 1320220469. The next prime is 1320220481. The reversal of 1320220471 is 1740220231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320220471 - 2¹ = 1320220469 is a prime.

It is a super-3 number, since 3×1320220471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320220441) 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 7 ways as a sum of consecutive naturals, for example, 26320 + ... + 57733.

It is an arithmetic number, because the mean of its divisors is an integer number (167687730).

Almost surely, 2^1320220471 is an apocalyptic number.

1320220471 is a deficient number, since it is larger than the sum of its proper divisors (21281369).

1320220471 is a wasteful number, since it uses less digits than its factorization.

1320220471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84305.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1320220471 is about 36334.8382547659. The cubic root of 1320220471 is about 1097.0223798536.

The spelling of 1320220471 in words is "one billion, three hundred twenty million, two hundred twenty thousand, four hundred seventy-one".