1301245131 has 4 divisors (see below), whose sum is σ = 1734993512. Its totient is φ = 867496752.

The previous prime is 1301245111. The next prime is 1301245159. The reversal of 1301245131 is 1315421031.

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

It is not a de Polignac number, because 1301245131 - 2¹³ = 1301236939 is a prime.

It is a super-2 number, since 2×1301245131² = 3386477781902414322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301245098 and 1301245107.

It is not an unprimeable number, because it can be changed into a prime (1301245111) 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, 216874186 + ... + 216874191.

It is an arithmetic number, because the mean of its divisors is an integer number (433748378).

Almost surely, 2^1301245131 is an apocalyptic number.

1301245131 is a deficient number, since it is larger than the sum of its proper divisors (433748381).

1301245131 is an equidigital number, since it uses as much as digits as its factorization.

1301245131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433748380.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1301245131 is about 36072.7754823496. The cubic root of 1301245131 is about 1091.7412147241.

Adding to 1301245131 its reverse (1315421031), we get a palindrome (2616666162).

The spelling of 1301245131 in words is "one billion, three hundred one million, two hundred forty-five thousand, one hundred thirty-one".