123537106663 has 2 divisors, whose sum is σ = 123537106664. Its totient is φ = 123537106662.

The previous prime is 123537106633. The next prime is 123537106687. The reversal of 123537106663 is 366601735321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123537106663 is a prime.

It is a super-2 number, since 2×123537106663² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123537106633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61768553331 + 61768553332.

It is an arithmetic number, because the mean of its divisors is an integer number (61768553332).

Almost surely, 2^123537106663 is an apocalyptic number.

123537106663 is a deficient number, since it is larger than the sum of its proper divisors (1).

123537106663 is an equidigital number, since it uses as much as digits as its factorization.

123537106663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 123537106663 in words is "one hundred twenty-three billion, five hundred thirty-seven million, one hundred six thousand, six hundred sixty-three".