42073130020249 has 2 divisors, whose sum is σ = 42073130020250. Its totient is φ = 42073130020248.

The previous prime is 42073130020177. The next prime is 42073130020277. The reversal of 42073130020249 is 94202003137024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41531386915225 + 541743105024 = 6444485^2 + 736032^2 .

It is a cyclic number.

It is not a de Polignac number, because 42073130020249 - 2¹⁹ = 42073129495961 is a prime.

It is not a weakly prime, because it can be changed into another prime (42073130020949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036565010124 + 21036565010125.

It is an arithmetic number, because the mean of its divisors is an integer number (21036565010125).

Almost surely, 2^{42073130020249} is an apocalyptic number.

It is an amenable number.

42073130020249 is a deficient number, since it is larger than the sum of its proper divisors (1).

42073130020249 is an equidigital number, since it uses as much as digits as its factorization.

42073130020249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 42073130020249 in words is "forty-two trillion, seventy-three billion, one hundred thirty million, twenty thousand, two hundred forty-nine".