231466422421 has 16 divisors (see below), whose sum is σ = 250187802480. Its totient is φ = 212877342720.

The previous prime is 231466422413. The next prime is 231466422437. The reversal of 231466422421 is 124224664132.

231466422421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 15998708196 + 215467714225 = 126486^2 + 464185^2 .

It is a cyclic number.

It is not a de Polignac number, because 231466422421 - 2³ = 231466422413 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 (231466422221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4004595 + ... + 4061983.

It is an arithmetic number, because the mean of its divisors is an integer number (15636737655).

Almost surely, 2^231466422421 is an apocalyptic number.

It is an amenable number.

231466422421 is a deficient number, since it is larger than the sum of its proper divisors (18721380059).

231466422421 is a wasteful number, since it uses less digits than its factorization.

231466422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58536.

The product of its digits is 110592, while the sum is 37.

The spelling of 231466422421 in words is "two hundred thirty-one billion, four hundred sixty-six million, four hundred twenty-two thousand, four hundred twenty-one".