1313021211312 has 40 divisors (see below), whose sum is σ = 3392205742080. Its totient is φ = 437643507520.

The previous prime is 1313021211289. The next prime is 1313021211367. The reversal of 1313021211312 is 2131121203131.

It is a super-2 number, since 2×1313021211312² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 237012 + ... + 1637747.

It is an arithmetic number, because the mean of its divisors is an integer number (84805143552).

Almost surely, 2^{1313021211312} is an apocalyptic number.

1313021211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313021211312 is an abundant number, since it is smaller than the sum of its proper divisors (2079184530768).

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

1313021211312 is a wasteful number, since it uses less digits than its factorization.

1313021211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889361 (or 1889355 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1313021211312 its reverse (2131121203131), we get a palindrome (3444142414443).

The spelling of 1313021211312 in words is "one trillion, three hundred thirteen billion, twenty-one million, two hundred eleven thousand, three hundred twelve".