1310000013131 has 4 divisors (see below), whose sum is σ = 1311787189872. Its totient is φ = 1308212836392.

The previous prime is 1310000013097. The next prime is 1310000013137. The reversal of 1310000013131 is 1313100000131.

It is a happy number.

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 1310000013131 - 2¹⁰ = 1310000012107 is a prime.

It is a super-2 number, since 2×1310000013131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310000013137) 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, 893587271 + ... + 893588736.

It is an arithmetic number, because the mean of its divisors is an integer number (327946797468).

Almost surely, 2^{1310000013131} is an apocalyptic number.

1310000013131 is a deficient number, since it is larger than the sum of its proper divisors (1787176741).

1310000013131 is an equidigital number, since it uses as much as digits as its factorization.

1310000013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787176740.

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

Adding to 1310000013131 its reverse (1313100000131), we get a palindrome (2623100013262).

The spelling of 1310000013131 in words is "one trillion, three hundred ten billion, thirteen thousand, one hundred thirty-one".