305406232016143 has 16 divisors (see below), whose sum is σ = 319779012833280. Its totient is φ = 291290332316256.

The previous prime is 305406232016113. The next prime is 305406232016161. The reversal of 305406232016143 is 341610232604503.

It is a cyclic number.

It is not a de Polignac number, because 305406232016143 - 2¹⁷ = 305406231885071 is a prime.

It is a super-2 number, since 2×305406232016143² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305406232016096 and 305406232016105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305406232016113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15017746 + ... + 28919632.

It is an arithmetic number, because the mean of its divisors is an integer number (19986188302080).

Almost surely, 2^{305406232016143} is an apocalyptic number.

305406232016143 is a deficient number, since it is larger than the sum of its proper divisors (14372780817137).

305406232016143 is a wasteful number, since it uses less digits than its factorization.

305406232016143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911126.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 305406232016143 in words is "three hundred five trillion, four hundred six billion, two hundred thirty-two million, sixteen thousand, one hundred forty-three".