1231123440301 has 4 divisors (see below), whose sum is σ = 1231190692704. Its totient is φ = 1231056187900.

The previous prime is 1231123440271. The next prime is 1231123440329. The reversal of 1231123440301 is 1030443211321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1231123440301 - 2⁵ = 1231123440269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231123449301) 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, 33598735 + ... + 33635356.

It is an arithmetic number, because the mean of its divisors is an integer number (307797673176).

Almost surely, 2^{1231123440301} is an apocalyptic number.

It is an amenable number.

1231123440301 is a deficient number, since it is larger than the sum of its proper divisors (67252403).

1231123440301 is an equidigital number, since it uses as much as digits as its factorization.

1231123440301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67252402.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1231123440301 its reverse (1030443211321), we get a palindrome (2261566651622).

The spelling of 1231123440301 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-three million, four hundred forty thousand, three hundred one".