1320912319 has 8 divisors (see below), whose sum is σ = 1396563840. Its totient is φ = 1245873816.

The previous prime is 1320912317. The next prime is 1320912323. The reversal of 1320912319 is 9132190231.

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 1320912319 - 2¹ = 1320912317 is a prime.

It is a super-2 number, since 2×1320912319² = 3489618708971915522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320912317) 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, 148819 + ... + 157444.

It is an arithmetic number, because the mean of its divisors is an integer number (174570480).

Almost surely, 2^1320912319 is an apocalyptic number.

1320912319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1320912319 is a deficient number, since it is larger than the sum of its proper divisors (75651521).

1320912319 is a wasteful number, since it uses less digits than its factorization.

1320912319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306509.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1320912319 is about 36344.3574575201. The cubic root of 1320912319 is about 1097.2139741662.

It can be divided in two parts, 1320912 and 319, that added together give a palindrome (1321231).

The spelling of 1320912319 in words is "one billion, three hundred twenty million, nine hundred twelve thousand, three hundred nineteen".