123886120 has 32 divisors (see below), whose sum is σ = 283318920. Its totient is φ = 48741120.

The previous prime is 123886117. The next prime is 123886127. The reversal of 123886120 is 21688321.

It can be written as a sum of positive squares in 4 ways, for example, as 81036004 + 42850116 = 9002^2 + 6546^2 .

It is not an unprimeable number, because it can be changed into a prime (123886127) 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, 22947 + ... + 27826.

Almost surely, 2^123886120 is an apocalyptic number.

123886120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123886120 is an abundant number, since it is smaller than the sum of its proper divisors (159432800).

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

123886120 is a wasteful number, since it uses less digits than its factorization.

123886120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50845 (or 50841 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 123886120 is about 11130.4141881603. The cubic root of 123886120 is about 498.5103932170.

The spelling of 123886120 in words is "one hundred twenty-three million, eight hundred eighty-six thousand, one hundred twenty".