1021013133021 has 32 divisors (see below), whose sum is σ = 1745815353600. Its totient is φ = 577659470400.

The previous prime is 1021013132983. The next prime is 1021013133029. The reversal of 1021013133021 is 1203313101201.

1021013133021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021013133021 - 2³⁵ = 986653394653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021013132985 and 1021013133003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021013133029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26724406 + ... + 26762583.

It is an arithmetic number, because the mean of its divisors is an integer number (54556729800).

Almost surely, 2^{1021013133021} is an apocalyptic number.

It is an amenable number.

1021013133021 is a deficient number, since it is larger than the sum of its proper divisors (724802220579).

1021013133021 is a wasteful number, since it uses less digits than its factorization.

1021013133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53487106 (or 53487100 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1021013133021 its reverse (1203313101201), we get a palindrome (2224326234222).

The spelling of 1021013133021 in words is "one trillion, twenty-one billion, thirteen million, one hundred thirty-three thousand, twenty-one".