4423021512431 has 2 divisors, whose sum is σ = 4423021512432. Its totient is φ = 4423021512430.

The previous prime is 4423021512407. The next prime is 4423021512449. The reversal of 4423021512431 is 1342151203244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4423021512431 - 2⁶ = 4423021512367 is a prime.

It is a super-2 number, since 2×4423021512431² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4423021542431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211510756215 + 2211510756216.

It is an arithmetic number, because the mean of its divisors is an integer number (2211510756216).

Almost surely, 2^{4423021512431} is an apocalyptic number.

4423021512431 is a deficient number, since it is larger than the sum of its proper divisors (1).

4423021512431 is an equidigital number, since it uses as much as digits as its factorization.

4423021512431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 4423021512431 its reverse (1342151203244), we get a palindrome (5765172715675).

The spelling of 4423021512431 in words is "four trillion, four hundred twenty-three billion, twenty-one million, five hundred twelve thousand, four hundred thirty-one".