2031420443 has 8 divisors (see below), whose sum is σ = 2188043088. Its totient is φ = 1874849184.

The previous prime is 2031420437. The next prime is 2031420493. The reversal of 2031420443 is 3440241302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2031420443 - 2⁴ = 2031420427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031420403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120905 + ... + 136677.

It is an arithmetic number, because the mean of its divisors is an integer number (273505386).

Almost surely, 2^2031420443 is an apocalyptic number.

2031420443 is a deficient number, since it is larger than the sum of its proper divisors (156622645).

2031420443 is a wasteful number, since it uses less digits than its factorization.

2031420443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25693.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2031420443 is about 45071.2817989460. The cubic root of 2031420443 is about 1266.4846765390.

Adding to 2031420443 its reverse (3440241302), we get a palindrome (5471661745).

The spelling of 2031420443 in words is "two billion, thirty-one million, four hundred twenty thousand, four hundred forty-three".