123027156340 has 24 divisors (see below), whose sum is σ = 281844031392. Its totient is φ = 44737147680.

The previous prime is 123027156313. The next prime is 123027156341. The reversal of 123027156340 is 43651720321.

It is a junction number, because it is equal to n+sod(n) for n = 123027156296 and 123027156305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123027156341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279606954 + ... + 279607393.

It is an arithmetic number, because the mean of its divisors is an integer number (11743501308).

Almost surely, 2^123027156340 is an apocalyptic number.

123027156340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123027156340 is an abundant number, since it is smaller than the sum of its proper divisors (158816875052).

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

123027156340 is a wasteful number, since it uses less digits than its factorization.

123027156340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559214367 (or 559214365 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 123027156340 its reverse (43651720321), we get a palindrome (166678876661).

The spelling of 123027156340 in words is "one hundred twenty-three billion, twenty-seven million, one hundred fifty-six thousand, three hundred forty".