1301201023 has 4 divisors (see below), whose sum is σ = 1306264320. Its totient is φ = 1296137728.

The previous prime is 1301201017. The next prime is 1301201071. The reversal of 1301201023 is 3201021031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301201023 - 2⁵ = 1301200991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301200994 and 1301201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301201423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2531263 + ... + 2531776.

It is an arithmetic number, because the mean of its divisors is an integer number (326566080).

Almost surely, 2^1301201023 is an apocalyptic number.

1301201023 is a deficient number, since it is larger than the sum of its proper divisors (5063297).

1301201023 is an equidigital number, since it uses as much as digits as its factorization.

1301201023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063296.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1301201023 is about 36072.1641019776. The cubic root of 1301201023 is about 1091.7288790863.

Adding to 1301201023 its reverse (3201021031), we get a palindrome (4502222054).

The spelling of 1301201023 in words is "one billion, three hundred one million, two hundred one thousand, twenty-three".