1231421301241 has 4 divisors (see below), whose sum is σ = 1231427805172. Its totient is φ = 1231414797312.

The previous prime is 1231421301223. The next prime is 1231421301247. The reversal of 1231421301241 is 1421031241321.

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 417057640000 + 814363661241 = 645800^2 + 902421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231421301241 - 2¹³ = 1231421293049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231421301247) 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, 2959176 + ... + 3349561.

It is an arithmetic number, because the mean of its divisors is an integer number (307856951293).

Almost surely, 2^{1231421301241} is an apocalyptic number.

It is an amenable number.

1231421301241 is a deficient number, since it is larger than the sum of its proper divisors (6503931).

1231421301241 is an equidigital number, since it uses as much as digits as its factorization.

1231421301241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503930.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1231421301241 its reverse (1421031241321), we get a palindrome (2652452542562).

The spelling of 1231421301241 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-one million, three hundred one thousand, two hundred forty-one".