131240250833 has 2 divisors, whose sum is σ = 131240250834. Its totient is φ = 131240250832.

The previous prime is 131240250797. The next prime is 131240250863. The reversal of 131240250833 is 338052042131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131147552449 + 92698384 = 362143^2 + 9628^2 .

It is a cyclic number.

It is not a de Polignac number, because 131240250833 - 2⁶ = 131240250769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131240250833.

It is not a weakly prime, because it can be changed into another prime (131240250863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65620125416 + 65620125417.

It is an arithmetic number, because the mean of its divisors is an integer number (65620125417).

Almost surely, 2^131240250833 is an apocalyptic number.

It is an amenable number.

131240250833 is a deficient number, since it is larger than the sum of its proper divisors (1).

131240250833 is an equidigital number, since it uses as much as digits as its factorization.

131240250833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 131240250833 its reverse (338052042131), we get a palindrome (469292292964).

The spelling of 131240250833 in words is "one hundred thirty-one billion, two hundred forty million, two hundred fifty thousand, eight hundred thirty-three".