1320847031 has 8 divisors (see below), whose sum is σ = 1517362464. Its totient is φ = 1126287360.

The previous prime is 1320847027. The next prime is 1320847049. The reversal of 1320847031 is 1307480231.

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 1320847031 - 2² = 1320847027 is a prime.

It is a super-2 number, since 2×1320847031² = 3489273758603029922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320846985 and 1320847003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320847001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487490 + ... + 490191.

It is an arithmetic number, because the mean of its divisors is an integer number (189670308).

Almost surely, 2^1320847031 is an apocalyptic number.

1320847031 is a deficient number, since it is larger than the sum of its proper divisors (196515433).

1320847031 is an equidigital number, since it uses as much as digits as its factorization.

1320847031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977881.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1320847031 is about 36343.4592602300. The cubic root of 1320847031 is about 1097.1958967396.

The spelling of 1320847031 in words is "one billion, three hundred twenty million, eight hundred forty-seven thousand, thirty-one".