42103222340981 has 2 divisors, whose sum is σ = 42103222340982. Its totient is φ = 42103222340980.

The previous prime is 42103222340969. The next prime is 42103222341013. The reversal of 42103222340981 is 18904322230124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41874746944900 + 228475396081 = 6471070^2 + 477991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42103222340981 is a prime.

It is a super-2 number, since 2×42103222340981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42103222370981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051611170490 + 21051611170491.

It is an arithmetic number, because the mean of its divisors is an integer number (21051611170491).

Almost surely, 2^{42103222340981} is an apocalyptic number.

It is an amenable number.

42103222340981 is a deficient number, since it is larger than the sum of its proper divisors (1).

42103222340981 is an equidigital number, since it uses as much as digits as its factorization.

42103222340981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 42103222340981 in words is "forty-two trillion, one hundred three billion, two hundred twenty-two million, three hundred forty thousand, nine hundred eighty-one".