63747323131 has 2 divisors, whose sum is σ = 63747323132. Its totient is φ = 63747323130.

The previous prime is 63747323113. The next prime is 63747323137. The reversal of 63747323131 is 13132374736.

It is a happy number.

Together with previous prime (63747323113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63747323131 - 2⁵ = 63747323099 is a prime.

It is a super-2 number, since 2×63747323131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63747323137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31873661565 + 31873661566.

It is an arithmetic number, because the mean of its divisors is an integer number (31873661566).

Almost surely, 2^63747323131 is an apocalyptic number.

63747323131 is a deficient number, since it is larger than the sum of its proper divisors (1).

63747323131 is an equidigital number, since it uses as much as digits as its factorization.

63747323131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 40.

Adding to 63747323131 its reverse (13132374736), we get a palindrome (76879697867).

The spelling of 63747323131 in words is "sixty-three billion, seven hundred forty-seven million, three hundred twenty-three thousand, one hundred thirty-one".