3131230104421 has 2 divisors, whose sum is σ = 3131230104422. Its totient is φ = 3131230104420.

The previous prime is 3131230104391. The next prime is 3131230104463. The reversal of 3131230104421 is 1244010321313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2955322001025 + 175908103396 = 1719105^2 + 419414^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131230104421 - 2³¹ = 3129082620773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3131230144421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565615052210 + 1565615052211.

It is an arithmetic number, because the mean of its divisors is an integer number (1565615052211).

Almost surely, 2^{3131230104421} is an apocalyptic number.

It is an amenable number.

3131230104421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131230104421 is an equidigital number, since it uses as much as digits as its factorization.

3131230104421 is an evil number, because the sum of its binary digits is even.

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

Adding to 3131230104421 its reverse (1244010321313), we get a palindrome (4375240425734).

The spelling of 3131230104421 in words is "three trillion, one hundred thirty-one billion, two hundred thirty million, one hundred four thousand, four hundred twenty-one".