121030038 has 112 divisors (see below), whose sum is σ = 304553520. Its totient is φ = 35831808.

The previous prime is 121030031. The next prime is 121030043. The reversal of 121030038 is 830030121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 121030038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030031) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 470806 + ... + 471062.

Almost surely, 2^121030038 is an apocalyptic number.

121030038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121030038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152276760).

121030038 is an abundant number, since it is smaller than the sum of its proper divisors (183523482).

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

121030038 is a wasteful number, since it uses less digits than its factorization.

121030038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 121030038 is about 11001.3652789097. The cubic root of 121030038 is about 494.6496694715.

Adding to 121030038 its reverse (830030121), we get a palindrome (951060159).

The spelling of 121030038 in words is "one hundred twenty-one million, thirty thousand, thirty-eight".