118923030 has 48 divisors (see below), whose sum is σ = 310615344. Its totient is φ = 31567680.

The previous prime is 118923029. The next prime is 118923031. The reversal of 118923030 is 30329811.

It is an interprime number because it is at equal distance from previous prime (118923029) and next prime (118923031).

It is a junction number, because it is equal to n+sod(n) for n = 118922985 and 118923003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118923031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17520 + ... + 23340.

It is an arithmetic number, because the mean of its divisors is an integer number (6471153).

Almost surely, 2^118923030 is an apocalyptic number.

118923030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118923030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155307672).

118923030 is an abundant number, since it is smaller than the sum of its proper divisors (191692314).

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

118923030 is a wasteful number, since it uses less digits than its factorization.

118923030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061 (or 6058 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 118923030 is about 10905.1836298157. The cubic root of 118923030 is about 491.7624026284.

The spelling of 118923030 in words is "one hundred eighteen million, nine hundred twenty-three thousand, thirty".