4021403311249 has 2 divisors, whose sum is σ = 4021403311250. Its totient is φ = 4021403311248.

The previous prime is 4021403311199. The next prime is 4021403311273. The reversal of 4021403311249 is 9421133041204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2095525493649 + 1925877817600 = 1447593^2 + 1387760^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021403311249 - 2³³ = 4012813376657 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021403311279) 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 as a sum of consecutive naturals, namely, 2010701655624 + 2010701655625.

It is an arithmetic number, because the mean of its divisors is an integer number (2010701655625).

Almost surely, 2^{4021403311249} is an apocalyptic number.

It is an amenable number.

4021403311249 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021403311249 is an equidigital number, since it uses as much as digits as its factorization.

4021403311249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 4021403311249 in words is "four trillion, twenty-one billion, four hundred three million, three hundred eleven thousand, two hundred forty-nine".