123035355140 has 48 divisors (see below), whose sum is σ = 259219200240. Its totient is φ = 49053381120.

The previous prime is 123035355077. The next prime is 123035355181. The reversal of 123035355140 is 41553530321.

It can be written as a sum of positive squares in 8 ways, for example, as 16371714304 + 106663640836 = 127952^2 + 326594^2 .

It is a super-2 number, since 2×123035355140² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123035355097 and 123035355106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13166870 + ... + 13176210.

It is an arithmetic number, because the mean of its divisors is an integer number (5400400005).

Almost surely, 2^123035355140 is an apocalyptic number.

123035355140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123035355140 is an abundant number, since it is smaller than the sum of its proper divisors (136183845100).

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

123035355140 is a wasteful number, since it uses less digits than its factorization.

123035355140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11432 (or 11430 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 123035355140 its reverse (41553530321), we get a palindrome (164588885461).

The spelling of 123035355140 in words is "one hundred twenty-three billion, thirty-five million, three hundred fifty-five thousand, one hundred forty".