201520024019 has 2 divisors, whose sum is σ = 201520024020. Its totient is φ = 201520024018.

The previous prime is 201520024009. The next prime is 201520024033. The reversal of 201520024019 is 910420025102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201520024019 - 2⁸ = 201520023763 is a prime.

It is a super-2 number, since 2×201520024019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201520024009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100760012009 + 100760012010.

It is an arithmetic number, because the mean of its divisors is an integer number (100760012010).

Almost surely, 2^201520024019 is an apocalyptic number.

201520024019 is a deficient number, since it is larger than the sum of its proper divisors (1).

201520024019 is an equidigital number, since it uses as much as digits as its factorization.

201520024019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 201520024019 in words is "two hundred one billion, five hundred twenty million, twenty-four thousand, nineteen".