1320111001 has 8 divisors (see below), whose sum is σ = 1489780800. Its totient is φ = 1158717840.

The previous prime is 1320110971. The next prime is 1320111031. The reversal of 1320111001 is 1001110231.

It is an interprime number because it is at equal distance from previous prime (1320110971) and next prime (1320111031).

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 1320111001 - 2⁷ = 1320110873 is a prime.

It is a super-2 number, since 2×1320111001² = 3485386109922444002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320111031) 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, 2068821 + ... + 2069458.

It is an arithmetic number, because the mean of its divisors is an integer number (186222600).

Almost surely, 2^1320111001 is an apocalyptic number.

1320111001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1320111001 is a deficient number, since it is larger than the sum of its proper divisors (169669799).

1320111001 is a wasteful number, since it uses less digits than its factorization.

1320111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138319.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1320111001 is about 36333.3318180428. The cubic root of 1320111001 is about 1096.9920580596.

Adding to 1320111001 its reverse (1001110231), we get a palindrome (2321221232).

The spelling of 1320111001 in words is "one billion, three hundred twenty million, one hundred eleven thousand, one".