78423204003241 has 2 divisors, whose sum is σ = 78423204003242. Its totient is φ = 78423204003240.

The previous prime is 78423204003211. The next prime is 78423204003271. The reversal of 78423204003241 is 14230040232487.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (78423204003211) and next prime (78423204003271).

It can be written as a sum of positive squares in only one way, i.e., 77253042575641 + 1170161427600 = 8789371^2 + 1081740^2 .

It is an emirp because it is prime and its reverse (14230040232487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78423204003241 - 2¹⁵ = 78423203970473 is a prime.

It is a super-2 number, since 2×78423204003241² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78423204003194 and 78423204003203.

It is not a weakly prime, because it can be changed into another prime (78423204003211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39211602001620 + 39211602001621.

It is an arithmetic number, because the mean of its divisors is an integer number (39211602001621).

Almost surely, 2^{78423204003241} is an apocalyptic number.

It is an amenable number.

78423204003241 is a deficient number, since it is larger than the sum of its proper divisors (1).

78423204003241 is an equidigital number, since it uses as much as digits as its factorization.

78423204003241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 40.

The spelling of 78423204003241 in words is "seventy-eight trillion, four hundred twenty-three billion, two hundred four million, three thousand, two hundred forty-one".