1231030232305 has 8 divisors (see below), whose sum is σ = 1524889062144. Its totient is φ = 953055663600.

The previous prime is 1231030232293. The next prime is 1231030232329. The reversal of 1231030232305 is 5032320301321.

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

It is not a de Polignac number, because 1231030232305 - 2⁷ = 1231030232177 is a prime.

It is a super-2 number, since 2×1231030232305² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231030232305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971065111 + ... + 3971065420.

It is an arithmetic number, because the mean of its divisors is an integer number (190611132768).

Almost surely, 2^{1231030232305} is an apocalyptic number.

It is an amenable number.

1231030232305 is a deficient number, since it is larger than the sum of its proper divisors (293858829839).

1231030232305 is an equidigital number, since it uses as much as digits as its factorization.

1231030232305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942130567.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 1231030232305 its reverse (5032320301321), we get a palindrome (6263350533626).

The spelling of 1231030232305 in words is "one trillion, two hundred thirty-one billion, thirty million, two hundred thirty-two thousand, three hundred five".