230440991373 has 12 divisors (see below), whose sum is σ = 333802158300. Its totient is φ = 153192120576.

The previous prime is 230440991371. The next prime is 230440991381. The reversal of 230440991373 is 373199044032.

230440991373 is a `hidden beast` number, since 230 + 4 + 40 + 9 + 9 + 1 + 373 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31813003044 + 198627988329 = 178362^2 + 445677^2 .

It is not a de Polignac number, because 230440991373 - 2¹ = 230440991371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230440991371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36263898 + ... + 36270251.

It is an arithmetic number, because the mean of its divisors is an integer number (27816846525).

Almost surely, 2^230440991373 is an apocalyptic number.

It is an amenable number.

230440991373 is a deficient number, since it is larger than the sum of its proper divisors (103361166927).

230440991373 is a wasteful number, since it uses less digits than its factorization.

230440991373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72534508 (or 72534505 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 230440991373 in words is "two hundred thirty billion, four hundred forty million, nine hundred ninety-one thousand, three hundred seventy-three".