123124377631 has 2 divisors, whose sum is σ = 123124377632. Its totient is φ = 123124377630.

The previous prime is 123124377613. The next prime is 123124377647. The reversal of 123124377631 is 136773421321.

It is a happy number.

Together with previous prime (123124377613) 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 123124377631 - 2¹⁹ = 123123853343 is a prime.

It is a super-2 number, since 2×123124377631² (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 (123124377661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562188815 + 61562188816.

It is an arithmetic number, because the mean of its divisors is an integer number (61562188816).

Almost surely, 2^123124377631 is an apocalyptic number.

123124377631 is a deficient number, since it is larger than the sum of its proper divisors (1).

123124377631 is an equidigital number, since it uses as much as digits as its factorization.

123124377631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

Adding to 123124377631 its reverse (136773421321), we get a palindrome (259897798952).

The spelling of 123124377631 in words is "one hundred twenty-three billion, one hundred twenty-four million, three hundred seventy-seven thousand, six hundred thirty-one".