4231077421 has 2 divisors, whose sum is σ = 4231077422. Its totient is φ = 4231077420.

The previous prime is 4231077371. The next prime is 4231077463. The reversal of 4231077421 is 1247701324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3955152100 + 275925321 = 62890^2 + 16611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4231077421 is a prime.

It is a super-2 number, since 2×4231077421² = 35804032284992022482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231077481) 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 as a sum of consecutive naturals, namely, 2115538710 + 2115538711.

It is an arithmetic number, because the mean of its divisors is an integer number (2115538711).

Almost surely, 2^4231077421 is an apocalyptic number.

It is an amenable number.

4231077421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231077421 is an equidigital number, since it uses as much as digits as its factorization.

4231077421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 4231077421 is about 65046.7325928059. The cubic root of 4231077421 is about 1617.3983314062.

Adding to 4231077421 its reverse (1247701324), we get a palindrome (5478778745).

The spelling of 4231077421 in words is "four billion, two hundred thirty-one million, seventy-seven thousand, four hundred twenty-one".