1220312327 has 12 divisors (see below), whose sum is σ = 1323340344. Its totient is φ = 1124791200.

The previous prime is 1220312323. The next prime is 1220312341. The reversal of 1220312327 is 7232130221.

It is not a de Polignac number, because 1220312327 - 2² = 1220312323 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220312321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118952 + ... + 128802.

It is an arithmetic number, because the mean of its divisors is an integer number (110278362).

Almost surely, 2^1220312327 is an apocalyptic number.

1220312327 is a deficient number, since it is larger than the sum of its proper divisors (103028017).

1220312327 is an equidigital number, since it uses as much as digits as its factorization.

1220312327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10610 (or 10597 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1220312327 is about 34932.9690550345. The cubic root of 1220312327 is about 1068.6209056161.

Adding to 1220312327 its reverse (7232130221), we get a palindrome (8452442548).

The spelling of 1220312327 in words is "one billion, two hundred twenty million, three hundred twelve thousand, three hundred twenty-seven".