2013430142021 has 4 divisors (see below), whose sum is σ = 2013433362444. Its totient is φ = 2013426921600.

The previous prime is 2013430141951. The next prime is 2013430142027. The reversal of 2013430142021 is 1202410343102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1271738865796 + 741691276225 = 1127714^2 + 861215^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013430142021 - 2²² = 2013425947717 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 (2013430142027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336620 + ... + 2034741.

It is an arithmetic number, because the mean of its divisors is an integer number (503358340611).

Almost surely, 2^{2013430142021} is an apocalyptic number.

It is an amenable number.

2013430142021 is a deficient number, since it is larger than the sum of its proper divisors (3220423).

2013430142021 is an equidigital number, since it uses as much as digits as its factorization.

2013430142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220422.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2013430142021 its reverse (1202410343102), we get a palindrome (3215840485123).

The spelling of 2013430142021 in words is "two trillion, thirteen billion, four hundred thirty million, one hundred forty-two thousand, twenty-one".