1231303202141 has 4 divisors (see below), whose sum is σ = 1252172748000. Its totient is φ = 1210433656284.

The previous prime is 1231303202069. The next prime is 1231303202147. The reversal of 1231303202141 is 1412023031321.

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 a de Polignac number, because none of the positive numbers 2^k-1231303202141 is a prime.

It is a super-2 number, since 2×1231303202141² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231303202147) 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, 10434772841 + ... + 10434772958.

It is an arithmetic number, because the mean of its divisors is an integer number (313043187000).

Almost surely, 2^{1231303202141} is an apocalyptic number.

It is an amenable number.

1231303202141 is a deficient number, since it is larger than the sum of its proper divisors (20869545859).

1231303202141 is an equidigital number, since it uses as much as digits as its factorization.

1231303202141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20869545858.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1231303202141 its reverse (1412023031321), we get a palindrome (2643326233462).

The spelling of 1231303202141 in words is "one trillion, two hundred thirty-one billion, three hundred three million, two hundred two thousand, one hundred forty-one".