1310131021402 has 24 divisors (see below), whose sum is σ = 2289114719136. Its totient is φ = 550890655536.

The previous prime is 1310131021363. The next prime is 1310131021421. The reversal of 1310131021402 is 2041201310131.

It is a self number, because there is not a number n which added to its sum of digits gives 1310131021402.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16617988 + ... + 16696639.

It is an arithmetic number, because the mean of its divisors is an integer number (95379779964).

Almost surely, 2^{1310131021402} is an apocalyptic number.

1310131021402 is a deficient number, since it is larger than the sum of its proper divisors (978983697734).

1310131021402 is an equidigital number, since it uses as much as digits as its factorization.

1310131021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33314742 (or 33314689 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1310131021402 its reverse (2041201310131), we get a palindrome (3351332331533).

The spelling of 1310131021402 in words is "one trillion, three hundred ten billion, one hundred thirty-one million, twenty-one thousand, four hundred two".