1301200031 has 4 divisors (see below), whose sum is σ = 1319526864. Its totient is φ = 1282873200.

The previous prime is 1301200013. The next prime is 1301200037. The reversal of 1301200031 is 1300021031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300021031 = 199 ⋅6532769.

It is a cyclic number.

It is not a de Polignac number, because 1301200031 - 2¹⁰ = 1301199007 is a prime.

It is a super-2 number, since 2×1301200031² = 3386243041348801922, 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 = 1301199985 and 1301200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301200037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9163310 + ... + 9163451.

It is an arithmetic number, because the mean of its divisors is an integer number (329881716).

Almost surely, 2^1301200031 is an apocalyptic number.

1301200031 is a deficient number, since it is larger than the sum of its proper divisors (18326833).

1301200031 is an equidigital number, since it uses as much as digits as its factorization.

1301200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18326832.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1301200031 is about 36072.1503517603. The cubic root of 1301200031 is about 1091.7286016516.

Adding to 1301200031 its reverse (1300021031), we get a palindrome (2601221062).

The spelling of 1301200031 in words is "one billion, three hundred one million, two hundred thousand, thirty-one".