1321114340 has 96 divisors (see below), whose sum is σ = 3448859904. Its totient is φ = 413913600.

The previous prime is 1321114313. The next prime is 1321114367. The reversal of 1321114340 is 434111231.

It is an interprime number because it is at equal distance from previous prime (1321114313) and next prime (1321114367).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180227 + ... + 187413.

It is an arithmetic number, because the mean of its divisors is an integer number (35925624).

Almost surely, 2^1321114340 is an apocalyptic number.

1321114340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321114340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724429952).

1321114340 is an abundant number, since it is smaller than the sum of its proper divisors (2127745564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321114340 is a wasteful number, since it uses less digits than its factorization.

1321114340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1321114340 is about 36347.1366134941. The cubic root of 1321114340 is about 1097.2699074687.

Adding to 1321114340 its reverse (434111231), we get a palindrome (1755225571).

The spelling of 1321114340 in words is "one billion, three hundred twenty-one million, one hundred fourteen thousand, three hundred forty".