1320143101 has 4 divisors (see below), whose sum is σ = 1323123552. Its totient is φ = 1317162652.

The previous prime is 1320143089. The next prime is 1320143107. The reversal of 1320143101 is 1013410231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1013410231 = 2273 ⋅445847.

It is a cyclic number.

It is not a de Polignac number, because 1320143101 - 2⁹ = 1320142589 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 (1320143107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489561 + ... + 1490446.

It is an arithmetic number, because the mean of its divisors is an integer number (330780888).

Almost surely, 2^1320143101 is an apocalyptic number.

It is an amenable number.

1320143101 is a deficient number, since it is larger than the sum of its proper divisors (2980451).

1320143101 is an equidigital number, since it uses as much as digits as its factorization.

1320143101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980450.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1320143101 is about 36333.7735584951. The cubic root of 1320143101 is about 1097.0009495240. Note that the first 3 decimals are identical.

Adding to 1320143101 its reverse (1013410231), we get a palindrome (2333553332).

The spelling of 1320143101 in words is "one billion, three hundred twenty million, one hundred forty-three thousand, one hundred one".