1301431065 has 32 divisors (see below), whose sum is σ = 2303603712. Its totient is φ = 622104000.

The previous prime is 1301431063. The next prime is 1301431067. The reversal of 1301431065 is 5601341031.

It is an interprime number because it is at equal distance from previous prime (1301431063) and next prime (1301431067).

It is not a de Polignac number, because 1301431065 - 2¹ = 1301431063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1301431063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43831 + ... + 67260.

It is an arithmetic number, because the mean of its divisors is an integer number (71987616).

Almost surely, 2^1301431065 is an apocalyptic number.

1301431065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1301431065 is a deficient number, since it is larger than the sum of its proper divisors (1002172647).

1301431065 is a wasteful number, since it uses less digits than its factorization.

1301431065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111181.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1301431065 is about 36075.3525970295. The cubic root of 1301431065 is about 1091.7932116252.

Adding to 1301431065 its reverse (5601341031), we get a palindrome (6902772096).

The spelling of 1301431065 in words is "one billion, three hundred one million, four hundred thirty-one thousand, sixty-five".