1301243031 has 24 divisors (see below), whose sum is σ = 2078543376. Its totient is φ = 777824640.

The previous prime is 1301243023. The next prime is 1301243039. The reversal of 1301243031 is 1303421031.

It is an interprime number because it is at equal distance from previous prime (1301243023) and next prime (1301243039).

It is not a de Polignac number, because 1301243031 - 2³ = 1301243023 is a prime.

It is a super-2 number, since 2×1301243031² = 3386466851452133922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1301242995 and 1301243013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301243039) 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 23 ways as a sum of consecutive naturals, for example, 82800 + ... + 97253.

It is an arithmetic number, because the mean of its divisors is an integer number (86605974).

Almost surely, 2^1301243031 is an apocalyptic number.

1301243031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1301243031 is a deficient number, since it is larger than the sum of its proper divisors (777300345).

1301243031 is a wasteful number, since it uses less digits than its factorization.

1301243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180143 (or 180140 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1301243031 is about 36072.7463745138. The cubic root of 1301243031 is about 1091.7406274256.

Adding to 1301243031 its reverse (1303421031), we get a palindrome (2604664062).

The spelling of 1301243031 in words is "one billion, three hundred one million, two hundred forty-three thousand, thirty-one".