131144103421 has 2 divisors, whose sum is σ = 131144103422. Its totient is φ = 131144103420.

The previous prime is 131144103383. The next prime is 131144103439. The reversal of 131144103421 is 124301441131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115864671321 + 15279432100 = 340389^2 + 123610^2 .

It is a cyclic number.

It is not a de Polignac number, because 131144103421 - 2¹⁵ = 131144070653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131144106421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65572051710 + 65572051711.

It is an arithmetic number, because the mean of its divisors is an integer number (65572051711).

Almost surely, 2^131144103421 is an apocalyptic number.

It is an amenable number.

131144103421 is a deficient number, since it is larger than the sum of its proper divisors (1).

131144103421 is an equidigital number, since it uses as much as digits as its factorization.

131144103421 is an odious number, because the sum of its binary digits is odd.

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

Adding to 131144103421 its reverse (124301441131), we get a palindrome (255445544552).

The spelling of 131144103421 in words is "one hundred thirty-one billion, one hundred forty-four million, one hundred three thousand, four hundred twenty-one".