1301131103 has 4 divisors (see below), whose sum is σ = 1301203248. Its totient is φ = 1301058960.

The previous prime is 1301131093. The next prime is 1301131121. The reversal of 1301131103 is 3011311031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3011311031 = 17 ⋅177135943.

It is a cyclic number.

It is not a de Polignac number, because 1301131103 - 2⁴ = 1301131087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301131133) 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, 17675 + ... + 53987.

It is an arithmetic number, because the mean of its divisors is an integer number (325300812).

Almost surely, 2^1301131103 is an apocalyptic number.

1301131103 is a deficient number, since it is larger than the sum of its proper divisors (72145).

1301131103 is an equidigital number, since it uses as much as digits as its factorization.

1301131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72144.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1301131103 is about 36071.1949206011. The cubic root of 1301131103 is about 1091.7093240626.

Adding to 1301131103 its reverse (3011311031), we get a palindrome (4312442134).

The spelling of 1301131103 in words is "one billion, three hundred one million, one hundred thirty-one thousand, one hundred three".