1311213013038 has 48 divisors (see below), whose sum is σ = 2849975631360. Its totient is φ = 435686419728.

The previous prime is 1311213013037. The next prime is 1311213013049. The reversal of 1311213013038 is 8303103121131.

It is a happy number.

1311213013038 is a `hidden beast` number, since 1 + 31 + 1 + 21 + 301 + 303 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311213013031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7109181 + ... + 7291287.

It is an arithmetic number, because the mean of its divisors is an integer number (59374492320).

Almost surely, 2^{1311213013038} is an apocalyptic number.

1311213013038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1311213013038 is an abundant number, since it is smaller than the sum of its proper divisors (1538762618322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311213013038 is a wasteful number, since it uses less digits than its factorization.

1311213013038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183381 (or 183378 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 1311213013038 its reverse (8303103121131), we get a palindrome (9614316134169).

The spelling of 1311213013038 in words is "one trillion, three hundred eleven billion, two hundred thirteen million, thirteen thousand, thirty-eight".