1301323131 has 8 divisors (see below), whose sum is σ = 1927886160. Its totient is φ = 867548736.

The previous prime is 1301323117. The next prime is 1301323139. The reversal of 1301323131 is 1313231031.

It is a happy number.

It is not a de Polignac number, because 1301323131 - 2¹⁰ = 1301322107 is a prime.

It is a super-2 number, since 2×1301323131² = 3386883782551286322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1301323139) 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 7 ways as a sum of consecutive naturals, for example, 24098550 + ... + 24098603.

It is an arithmetic number, because the mean of its divisors is an integer number (240985770).

Almost surely, 2^1301323131 is an apocalyptic number.

1301323131 is a deficient number, since it is larger than the sum of its proper divisors (626563029).

1301323131 is an equidigital number, since it uses as much as digits as its factorization.

1301323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48197162 (or 48197156 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1301323131 is about 36073.8566138970. The cubic root of 1301323131 is about 1091.7630282193.

Adding to 1301323131 its reverse (1313231031), we get a palindrome (2614554162).

The spelling of 1301323131 in words is "one billion, three hundred one million, three hundred twenty-three thousand, one hundred thirty-one".