230138781231145 has 8 divisors (see below), whose sum is σ = 277048858685256. Its totient is φ = 183522810846336.

The previous prime is 230138781231101. The next prime is 230138781231157. The reversal of 230138781231145 is 541132187831032.

230138781231145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10275691847184 + 219863089383961 = 3205572^2 + 14827781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230138781231145 is a prime.

It is a super-2 number, since 2×230138781231145² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73526765602 + ... + 73526768731.

It is an arithmetic number, because the mean of its divisors is an integer number (34631107335657).

Almost surely, 2^{230138781231145} is an apocalyptic number.

It is an amenable number.

230138781231145 is a deficient number, since it is larger than the sum of its proper divisors (46910077454111).

230138781231145 is a wasteful number, since it uses less digits than its factorization.

230138781231145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147053534651.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 230138781231145 in words is "two hundred thirty trillion, one hundred thirty-eight billion, seven hundred eighty-one million, two hundred thirty-one thousand, one hundred forty-five".