4231302400421 has 4 divisors (see below), whose sum is σ = 4231307897292. Its totient is φ = 4231296903552.

The previous prime is 4231302400399. The next prime is 4231302400427. The reversal of 4231302400421 is 1240042031324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4143203256196 + 88099144225 = 2035486^2 + 296815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4231302400421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231302400427) 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, 1359980 + ... + 3211253.

It is an arithmetic number, because the mean of its divisors is an integer number (1057826974323).

Almost surely, 2^{4231302400421} is an apocalyptic number.

It is an amenable number.

4231302400421 is a deficient number, since it is larger than the sum of its proper divisors (5496871).

4231302400421 is an equidigital number, since it uses as much as digits as its factorization.

4231302400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496870.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4231302400421 its reverse (1240042031324), we get a palindrome (5471344431745).

The spelling of 4231302400421 in words is "four trillion, two hundred thirty-one billion, three hundred two million, four hundred thousand, four hundred twenty-one".