1021313111143 has 12 divisors (see below), whose sum is σ = 1131637983960. Its totient is φ = 920826125856.

The previous prime is 1021313111131. The next prime is 1021313111177. The reversal of 1021313111143 is 3411113131201.

1021313111143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021313111143 - 2¹³ = 1021313102951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021313111113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70263348 + ... + 70277881.

It is an arithmetic number, because the mean of its divisors is an integer number (94303165330).

Almost surely, 2^{1021313111143} is an apocalyptic number.

1021313111143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1021313111143 is a deficient number, since it is larger than the sum of its proper divisors (110324872817).

1021313111143 is a wasteful number, since it uses less digits than its factorization.

1021313111143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140541298 (or 140541285 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 1021313111143 its reverse (3411113131201), we get a palindrome (4432426242344).

The spelling of 1021313111143 in words is "one trillion, twenty-one billion, three hundred thirteen million, one hundred eleven thousand, one hundred forty-three".