1231532325411 has 4 divisors (see below), whose sum is σ = 1642043100552. Its totient is φ = 821021550272.

The previous prime is 1231532325377. The next prime is 1231532325437. The reversal of 1231532325411 is 1145232351321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1231532325411 - 2⁶ = 1231532325347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231532325011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 205255387566 + ... + 205255387571.

It is an arithmetic number, because the mean of its divisors is an integer number (410510775138).

Almost surely, 2^{1231532325411} is an apocalyptic number.

1231532325411 is a deficient number, since it is larger than the sum of its proper divisors (410510775141).

1231532325411 is an equidigital number, since it uses as much as digits as its factorization.

1231532325411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410510775140.

The product of its digits is 21600, while the sum is 33.

Adding to 1231532325411 its reverse (1145232351321), we get a palindrome (2376764676732).

The spelling of 1231532325411 in words is "one trillion, two hundred thirty-one billion, five hundred thirty-two million, three hundred twenty-five thousand, four hundred eleven".