1310013101 has 4 divisors (see below), whose sum is σ = 1310327100. Its totient is φ = 1309699104.

The previous prime is 1310013079. The next prime is 1310013151. The reversal of 1310013101 is 1013100131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 636351076 + 673662025 = 25226^2 + 25955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310013101 is a prime.

It is a super-2 number, since 2×1310013101² = 3432268649583272402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310013151) 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, 150656 + ... + 159113.

It is an arithmetic number, because the mean of its divisors is an integer number (327581775).

Almost surely, 2^1310013101 is an apocalyptic number.

It is an amenable number.

1310013101 is a deficient number, since it is larger than the sum of its proper divisors (313999).

1310013101 is an equidigital number, since it uses as much as digits as its factorization.

1310013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313998.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1310013101 is about 36194.1031246804. The cubic root of 1310013101 is about 1094.1878289104.

Adding to 1310013101 its reverse (1013100131), we get a palindrome (2323113232).

The spelling of 1310013101 in words is "one billion, three hundred ten million, thirteen thousand, one hundred one".