2431231421 has 8 divisors (see below), whose sum is σ = 2579765760. Its totient is φ = 2283310528.

The previous prime is 2431231417. The next prime is 2431231427. The reversal of 2431231421 is 1241321342.

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

It is not a de Polignac number, because 2431231421 - 2² = 2431231417 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 (2431231427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145181 + ... + 161058.

It is an arithmetic number, because the mean of its divisors is an integer number (322470720).

Almost surely, 2^2431231421 is an apocalyptic number.

It is an amenable number.

2431231421 is a deficient number, since it is larger than the sum of its proper divisors (148534339).

2431231421 is a wasteful number, since it uses less digits than its factorization.

2431231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306723.

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

The square root of 2431231421 is about 49307.5189093915. The cubic root of 2431231421 is about 1344.6484842139.

Adding to 2431231421 its reverse (1241321342), we get a palindrome (3672552763).

The spelling of 2431231421 in words is "two billion, four hundred thirty-one million, two hundred thirty-one thousand, four hundred twenty-one".