121102030 has 48 divisors (see below), whose sum is σ = 256188096. Its totient is φ = 41092800.

The previous prime is 121102021. The next prime is 121102039. The reversal of 121102030 is 30201121.

It is an interprime number because it is at equal distance from previous prime (121102021) and next prime (121102039).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 121101998 and 121102016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48267 + ... + 50713.

It is an arithmetic number, because the mean of its divisors is an integer number (5337252).

Almost surely, 2^121102030 is an apocalyptic number.

121102030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121102030 is an abundant number, since it is smaller than the sum of its proper divisors (135086066).

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

121102030 is a wasteful number, since it uses less digits than its factorization.

121102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 121102030 is about 11004.6367500250. The cubic root of 121102030 is about 494.7477271139.

Adding to 121102030 its reverse (30201121), we get a palindrome (151303151).

Subtracting from 121102030 its reverse (30201121), we obtain a palindrome (90900909).

The spelling of 121102030 in words is "one hundred twenty-one million, one hundred two thousand, thirty".