123101442623 has 2 divisors, whose sum is σ = 123101442624. Its totient is φ = 123101442622.

The previous prime is 123101442577. The next prime is 123101442631. The reversal of 123101442623 is 326244101321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123101442623 - 2³² = 118806475327 is a prime.

It is a super-2 number, since 2×123101442623² (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 (123101442683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550721311 + 61550721312.

It is an arithmetic number, because the mean of its divisors is an integer number (61550721312).

Almost surely, 2^123101442623 is an apocalyptic number.

123101442623 is a deficient number, since it is larger than the sum of its proper divisors (1).

123101442623 is an equidigital number, since it uses as much as digits as its factorization.

123101442623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 123101442623 its reverse (326244101321), we get a palindrome (449345543944).

The spelling of 123101442623 in words is "one hundred twenty-three billion, one hundred one million, four hundred forty-two thousand, six hundred twenty-three".