2042053267421 has 4 divisors (see below), whose sum is σ = 2149529755200. Its totient is φ = 1934576779644.

The previous prime is 2042053267379. The next prime is 2042053267451. The reversal of 2042053267421 is 1247623502402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042053267421 - 2²² = 2042049073117 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 (2042053267451) 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, 53738243861 + ... + 53738243898.

It is an arithmetic number, because the mean of its divisors is an integer number (537382438800).

Almost surely, 2^{2042053267421} is an apocalyptic number.

It is an amenable number.

2042053267421 is a deficient number, since it is larger than the sum of its proper divisors (107476487779).

2042053267421 is a wasteful number, since it uses less digits than its factorization.

2042053267421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107476487778.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 2042053267421 its reverse (1247623502402), we get a palindrome (3289676769823).

The spelling of 2042053267421 in words is "two trillion, forty-two billion, fifty-three million, two hundred sixty-seven thousand, four hundred twenty-one".