305520231043 has 2 divisors, whose sum is σ = 305520231044. Its totient is φ = 305520231042.

The previous prime is 305520230989. The next prime is 305520231047. The reversal of 305520231043 is 340132025503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 305520231043 - 2³⁷ = 168081277571 is a prime.

It is a super-2 number, since 2×305520231043² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (305520231047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152760115521 + 152760115522.

It is an arithmetic number, because the mean of its divisors is an integer number (152760115522).

Almost surely, 2^305520231043 is an apocalyptic number.

305520231043 is a deficient number, since it is larger than the sum of its proper divisors (1).

305520231043 is an equidigital number, since it uses as much as digits as its factorization.

305520231043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 305520231043 its reverse (340132025503), we get a palindrome (645652256546).

The spelling of 305520231043 in words is "three hundred five billion, five hundred twenty million, two hundred thirty-one thousand, forty-three".