131360021641 has 2 divisors, whose sum is σ = 131360021642. Its totient is φ = 131360021640.

The previous prime is 131360021591. The next prime is 131360021677. The reversal of 131360021641 is 146120063131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106576131600 + 24783890041 = 326460^2 + 157429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131360021641 is a prime.

It is not a weakly prime, because it can be changed into another prime (131360081641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65680010820 + 65680010821.

It is an arithmetic number, because the mean of its divisors is an integer number (65680010821).

Almost surely, 2^131360021641 is an apocalyptic number.

It is an amenable number.

131360021641 is a deficient number, since it is larger than the sum of its proper divisors (1).

131360021641 is an equidigital number, since it uses as much as digits as its factorization.

131360021641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 131360021641 its reverse (146120063131), we get a palindrome (277480084772).

The spelling of 131360021641 in words is "one hundred thirty-one billion, three hundred sixty million, twenty-one thousand, six hundred forty-one".