1021313111131 has 2 divisors, whose sum is σ = 1021313111132. Its totient is φ = 1021313111130.

The previous prime is 1021313111113. The next prime is 1021313111177. The reversal of 1021313111131 is 1311113131201.

1021313111131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (1021313111113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021313111131 - 2²⁷ = 1021178893403 is a prime.

It is a super-2 number, since 2×1021313111131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021313111099 and 1021313111108.

It is not a weakly prime, because it can be changed into another prime (1021313111191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510656555565 + 510656555566.

It is an arithmetic number, because the mean of its divisors is an integer number (510656555566).

Almost surely, 2^{1021313111131} is an apocalyptic number.

1021313111131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021313111131 is an equidigital number, since it uses as much as digits as its factorization.

1021313111131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1021313111131 its reverse (1311113131201), we get a palindrome (2332426242332).

The spelling of 1021313111131 in words is "one trillion, twenty-one billion, three hundred thirteen million, one hundred eleven thousand, one hundred thirty-one".