2021013302131 has 32 divisors (see below), whose sum is σ = 2067568892928. Its totient is φ = 1975154388480.

The previous prime is 2021013302111. The next prime is 2021013302219. The reversal of 2021013302131 is 1312033101202.

It is a cyclic number.

It is not a de Polignac number, because 2021013302131 - 2¹³ = 2021013293939 is a prime.

It is a super-2 number, since 2×2021013302131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021013302099 and 2021013302108.

It is not an unprimeable number, because it can be changed into a prime (2021013302101) 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, 3408116571 + ... + 3408117163.

It is an arithmetic number, because the mean of its divisors is an integer number (64611527904).

Almost surely, 2^{2021013302131} is an apocalyptic number.

2021013302131 is a deficient number, since it is larger than the sum of its proper divisors (46555590797).

2021013302131 is a wasteful number, since it uses less digits than its factorization.

2021013302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2021013302131 its reverse (1312033101202), we get a palindrome (3333046403333).

The spelling of 2021013302131 in words is "two trillion, twenty-one billion, thirteen million, three hundred two thousand, one hundred thirty-one".