1300523131 has 4 divisors (see below), whose sum is σ = 1319933992. Its totient is φ = 1281112272.

The previous prime is 1300523123. The next prime is 1300523141. The reversal of 1300523131 is 1313250031.

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 1300523131 - 2³ = 1300523123 is a prime.

It is a super-2 number, since 2×1300523131² = 3382720828532086322, 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 = 1300523099 and 1300523108.

It is not an unprimeable number, because it can be changed into a prime (1300523141) 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, 9705330 + ... + 9705463.

It is an arithmetic number, because the mean of its divisors is an integer number (329983498).

Almost surely, 2^1300523131 is an apocalyptic number.

1300523131 is a deficient number, since it is larger than the sum of its proper divisors (19410861).

1300523131 is an equidigital number, since it uses as much as digits as its factorization.

1300523131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19410860.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1300523131 is about 36062.7665466753. The cubic root of 1300523131 is about 1091.5392586723.

Adding to 1300523131 its reverse (1313250031), we get a palindrome (2613773162).

The spelling of 1300523131 in words is "one billion, three hundred million, five hundred twenty-three thousand, one hundred thirty-one".