42038038321 has 2 divisors, whose sum is σ = 42038038322. Its totient is φ = 42038038320.

The previous prime is 42038038313. The next prime is 42038038351. The reversal of 42038038321 is 12383083024.

42038038321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37527438400 + 4510599921 = 193720^2 + 67161^2 .

It is a cyclic number.

It is not a de Polignac number, because 42038038321 - 2³ = 42038038313 is a prime.

It is not a weakly prime, because it can be changed into another prime (42038038351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21019019160 + 21019019161.

It is an arithmetic number, because the mean of its divisors is an integer number (21019019161).

Almost surely, 2^42038038321 is an apocalyptic number.

It is an amenable number.

42038038321 is a deficient number, since it is larger than the sum of its proper divisors (1).

42038038321 is an equidigital number, since it uses as much as digits as its factorization.

42038038321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

It can be divided in two parts, 4203803 and 8321, that added together give a palindrome (4212124).

The spelling of 42038038321 in words is "forty-two billion, thirty-eight million, thirty-eight thousand, three hundred twenty-one".