123113035400040 has 192 divisors, whose sum is σ = 473045160931200. Its totient is φ = 27169773313536.

The previous prime is 123113035400027. The next prime is 123113035400083. The reversal of 123113035400040 is 40004530311321.

It is a happy number.

123113035400040 is a `hidden beast` number, since 1 + 2 + 3 + 113 + 0 + 3 + 540 + 0 + 0 + 4 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 123113035399977 and 123113035400013.

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, 842243802 + ... + 842389961.

It is an arithmetic number, because the mean of its divisors is an integer number (2463776879850).

Almost surely, 2^{123113035400040} is an apocalyptic number.

123113035400040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123113035400040 is an abundant number, since it is smaller than the sum of its proper divisors (349932125531160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123113035400040 is a wasteful number, since it uses less digits than its factorization.

123113035400040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684633816 (or 1684633809 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 123113035400040 its reverse (40004530311321), we get a palindrome (163117565711361).

The spelling of 123113035400040 in words is "one hundred twenty-three trillion, one hundred thirteen billion, thirty-five million, four hundred thousand, forty".