131332214621 has 2 divisors, whose sum is σ = 131332214622. Its totient is φ = 131332214620.

The previous prime is 131332214551. The next prime is 131332214639. The reversal of 131332214621 is 126412233131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94931772100 + 36400442521 = 308110^2 + 190789^2 .

It is an emirp because it is prime and its reverse (126412233131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131332214621 - 2¹⁴ = 131332198237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131332210621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666107310 + 65666107311.

It is an arithmetic number, because the mean of its divisors is an integer number (65666107311).

Almost surely, 2^131332214621 is an apocalyptic number.

It is an amenable number.

131332214621 is a deficient number, since it is larger than the sum of its proper divisors (1).

131332214621 is an equidigital number, since it uses as much as digits as its factorization.

131332214621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

Adding to 131332214621 its reverse (126412233131), we get a palindrome (257744447752).

The spelling of 131332214621 in words is "one hundred thirty-one billion, three hundred thirty-two million, two hundred fourteen thousand, six hundred twenty-one".