4021423122499 has 2 divisors, whose sum is σ = 4021423122500. Its totient is φ = 4021423122498.

The previous prime is 4021423122397. The next prime is 4021423122517. The reversal of 4021423122499 is 9942213241204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4021423122499 - 2⁹ = 4021423121987 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021423182499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010711561249 + 2010711561250.

It is an arithmetic number, because the mean of its divisors is an integer number (2010711561250).

Almost surely, 2^{4021423122499} is an apocalyptic number.

4021423122499 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021423122499 is an equidigital number, since it uses as much as digits as its factorization.

4021423122499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 4021423122499 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred twenty-two thousand, four hundred ninety-nine".