1232131010213 has 4 divisors (see below), whose sum is σ = 1232471663820. Its totient is φ = 1231790356608.

The previous prime is 1232131010171. The next prime is 1232131010221. The reversal of 1232131010213 is 3120101312321.

It is a happy number.

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 578722304644 + 653408705569 = 760738^2 + 808337^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232131010213 - 2²⁴ = 1232114232997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232131013213) 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, 170321378 + ... + 170328611.

It is an arithmetic number, because the mean of its divisors is an integer number (308117915955).

Almost surely, 2^{1232131010213} is an apocalyptic number.

It is an amenable number.

1232131010213 is a deficient number, since it is larger than the sum of its proper divisors (340653607).

1232131010213 is an equidigital number, since it uses as much as digits as its factorization.

1232131010213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340653606.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1232131010213 its reverse (3120101312321), we get a palindrome (4352232322534).

The spelling of 1232131010213 in words is "one trillion, two hundred thirty-two billion, one hundred thirty-one million, ten thousand, two hundred thirteen".