123242355211005 has 48 divisors (see below), whose sum is σ = 215063408102400. Its totient is φ = 65285195416704.

The previous prime is 123242355210991. The next prime is 123242355211043. The reversal of 123242355211005 is 500112553242321.

123242355211005 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 4 + 23 + 5 + 521 + 100 + 5 = 666.

It is not a de Polignac number, because 123242355211005 - 2⁵ = 123242355210973 is a prime.

It is a super-2 number, since 2×123242355211005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153566692 + ... + 154367138.

It is an arithmetic number, because the mean of its divisors is an integer number (4480487668800).

Almost surely, 2^{123242355211005} is an apocalyptic number.

123242355211005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123242355211005 is a deficient number, since it is larger than the sum of its proper divisors (91821052891395).

123242355211005 is a wasteful number, since it uses less digits than its factorization.

123242355211005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823570 (or 823567 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 123242355211005 in words is "one hundred twenty-three trillion, two hundred forty-two billion, three hundred fifty-five million, two hundred eleven thousand, five".