131140021241 has 2 divisors, whose sum is σ = 131140021242. Its totient is φ = 131140021240.

The previous prime is 131140021237. The next prime is 131140021253. The reversal of 131140021241 is 142120041131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103928219641 + 27211801600 = 322379^2 + 164960^2 .

It is a cyclic number.

It is not a de Polignac number, because 131140021241 - 2² = 131140021237 is a prime.

It is not a weakly prime, because it can be changed into another prime (131140021211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65570010620 + 65570010621.

It is an arithmetic number, because the mean of its divisors is an integer number (65570010621).

Almost surely, 2^131140021241 is an apocalyptic number.

It is an amenable number.

131140021241 is a deficient number, since it is larger than the sum of its proper divisors (1).

131140021241 is an equidigital number, since it uses as much as digits as its factorization.

131140021241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 131140021241 its reverse (142120041131), we get a palindrome (273260062372).

The spelling of 131140021241 in words is "one hundred thirty-one billion, one hundred forty million, twenty-one thousand, two hundred forty-one".