1231030130201 has 4 divisors (see below), whose sum is σ = 1237408524852. Its totient is φ = 1224651735552.

The previous prime is 1231030130179. The next prime is 1231030130219. The reversal of 1231030130201 is 1020310301321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 902403102601 + 328627027600 = 949949^2 + 573260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231030130201 is a prime.

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 1231030130201.

It is not an unprimeable number, because it can be changed into a prime (1231030130401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3189197036 + ... + 3189197421.

It is an arithmetic number, because the mean of its divisors is an integer number (309352131213).

Almost surely, 2^{1231030130201} is an apocalyptic number.

It is an amenable number.

1231030130201 is a deficient number, since it is larger than the sum of its proper divisors (6378394651).

1231030130201 is an equidigital number, since it uses as much as digits as its factorization.

1231030130201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378394650.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1231030130201 its reverse (1020310301321), we get a palindrome (2251340431522).

The spelling of 1231030130201 in words is "one trillion, two hundred thirty-one billion, thirty million, one hundred thirty thousand, two hundred one".