1310402131 has 4 divisors (see below), whose sum is σ = 1312540432. Its totient is φ = 1308263832.

The previous prime is 1310402113. The next prime is 1310402141. The reversal of 1310402131 is 1312040131.

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 1310402131 - 2¹¹ = 1310400083 is a prime.

It is a super-2 number, since 2×1310402131² = 3434307489858682322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310402111) 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, 1068231 + ... + 1069456.

It is an arithmetic number, because the mean of its divisors is an integer number (328135108).

Almost surely, 2^1310402131 is an apocalyptic number.

1310402131 is a deficient number, since it is larger than the sum of its proper divisors (2138301).

1310402131 is an equidigital number, since it uses as much as digits as its factorization.

1310402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138300.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1310402131 is about 36199.4769437350. The cubic root of 1310402131 is about 1094.2961305655.

Adding to 1310402131 its reverse (1312040131), we get a palindrome (2622442262).

The spelling of 1310402131 in words is "one billion, three hundred ten million, four hundred two thousand, one hundred thirty-one".