2054205420431 has 4 divisors (see below), whose sum is σ = 2054492688864. Its totient is φ = 2053918152000.

The previous prime is 2054205420301. The next prime is 2054205420433. The reversal of 2054205420431 is 1340245024502.

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

It is a cyclic number.

It is not a de Polignac number, because 2054205420431 - 2³⁴ = 2037025551247 is a prime.

It is a super-3 number, since 3×2054205420431³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054205420433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143623490 + ... + 143637791.

It is an arithmetic number, because the mean of its divisors is an integer number (513623172216).

Almost surely, 2^{2054205420431} is an apocalyptic number.

2054205420431 is a deficient number, since it is larger than the sum of its proper divisors (287268433).

2054205420431 is an equidigital number, since it uses as much as digits as its factorization.

2054205420431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287268432.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 2054205420431 in words is "two trillion, fifty-four billion, two hundred five million, four hundred twenty thousand, four hundred thirty-one".