121112030 has 32 divisors (see below), whose sum is σ = 235376064. Its totient is φ = 44603136.

The previous prime is 121112027. The next prime is 121112039. The reversal of 121112030 is 30211121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62354 + ... + 64266.

It is an arithmetic number, because the mean of its divisors is an integer number (7355502).

Almost surely, 2^121112030 is an apocalyptic number.

121112030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112030 is a deficient number, since it is larger than the sum of its proper divisors (114264034).

121112030 is a wasteful number, since it uses less digits than its factorization.

121112030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121112030 is about 11005.0910945798. The cubic root of 121112030 is about 494.7613446701.

Adding to 121112030 its reverse (30211121), we get a palindrome (151323151).

Subtracting from 121112030 its reverse (30211121), we obtain a palindrome (90900909).

It can be divided in two parts, 12111 and 2030, that added together give a palindrome (14141).

The spelling of 121112030 in words is "one hundred twenty-one million, one hundred twelve thousand, thirty".