2021231430135 has 12 divisors (see below), whose sum is σ = 3503467812312. Its totient is φ = 1077990096048.

The previous prime is 2021231430133. The next prime is 2021231430157. The reversal of 2021231430135 is 5310341321202.

2021231430135 is a `hidden beast` number, since 2 + 0 + 2 + 12 + 314 + 301 + 35 = 666.

It is not a de Polignac number, because 2021231430135 - 2¹ = 2021231430133 is a prime.

It is a super-2 number, since 2×2021231430135² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021231430099 and 2021231430108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021231430133) 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, 22458126957 + ... + 22458127046.

It is an arithmetic number, because the mean of its divisors is an integer number (291955651026).

Almost surely, 2^{2021231430135} is an apocalyptic number.

2021231430135 is a deficient number, since it is larger than the sum of its proper divisors (1482236382177).

2021231430135 is a wasteful number, since it uses less digits than its factorization.

2021231430135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44916254014 (or 44916254011 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 2021231430135 its reverse (5310341321202), we get a palindrome (7331572751337).

The spelling of 2021231430135 in words is "two trillion, twenty-one billion, two hundred thirty-one million, four hundred thirty thousand, one hundred thirty-five".