1021131331113 has 16 divisors (see below), whose sum is σ = 1443547967040. Its totient is φ = 639842835456.

The previous prime is 1021131331049. The next prime is 1021131331159. The reversal of 1021131331113 is 3111331311201.

It is not a de Polignac number, because 1021131331113 - 2⁶ = 1021131331049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021131331113.

It is not an unprimeable number, because it can be changed into a prime (1021131331163) 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 15 ways as a sum of consecutive naturals, for example, 13509120 + ... + 13584497.

It is an arithmetic number, because the mean of its divisors is an integer number (90221747940).

Almost surely, 2^{1021131331113} is an apocalyptic number.

It is an amenable number.

1021131331113 is a deficient number, since it is larger than the sum of its proper divisors (422416635927).

1021131331113 is a wasteful number, since it uses less digits than its factorization.

1021131331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27094376.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1021131331113 its reverse (3111331311201), we get a palindrome (4132462642314).

The spelling of 1021131331113 in words is "one trillion, twenty-one billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred thirteen".