1231010411321 has 4 divisors (see below), whose sum is σ = 1231033027152. Its totient is φ = 1230987795492.

The previous prime is 1231010411299. The next prime is 1231010411341. The reversal of 1231010411321 is 1231140101321.

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 1231010411321 - 2¹⁰ = 1231010410297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231010411293 and 1231010411302.

It is not an unprimeable number, because it can be changed into a prime (1231010411341) 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, 11226071 + ... + 11335196.

It is an arithmetic number, because the mean of its divisors is an integer number (307758256788).

Almost surely, 2^{1231010411321} is an apocalyptic number.

It is an amenable number.

1231010411321 is a deficient number, since it is larger than the sum of its proper divisors (22615831).

1231010411321 is an equidigital number, since it uses as much as digits as its factorization.

1231010411321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22615830.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1231010411321 its reverse (1231140101321), we get a palindrome (2462150512642).

The spelling of 1231010411321 in words is "one trillion, two hundred thirty-one billion, ten million, four hundred eleven thousand, three hundred twenty-one".