2042516431 has 4 divisors (see below), whose sum is σ = 2050053664. Its totient is φ = 2034979200.

The previous prime is 2042516419. The next prime is 2042516453. The reversal of 2042516431 is 1346152402.

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 2042516431 - 2¹⁹ = 2041992143 is a prime.

It is a super-2 number, since 2×2042516431² = 8343746741809955522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042516431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042516461) 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, 3768210 + ... + 3768751.

It is an arithmetic number, because the mean of its divisors is an integer number (512513416).

Almost surely, 2^2042516431 is an apocalyptic number.

2042516431 is a deficient number, since it is larger than the sum of its proper divisors (7537233).

2042516431 is an equidigital number, since it uses as much as digits as its factorization.

2042516431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537232.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2042516431 is about 45194.2079364159. The cubic root of 2042516431 is about 1268.7864140066.

Adding to 2042516431 its reverse (1346152402), we get a palindrome (3388668833).

It can be divided in two parts, 20425 and 16431, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 2042516431 in words is "two billion, forty-two million, five hundred sixteen thousand, four hundred thirty-one".