121100031213030 has 192 divisors, whose sum is σ = 321000027416640. Its totient is φ = 31669875072000.

The previous prime is 121100031212873. The next prime is 121100031213041. The reversal of 121100031213030 is 30312130001121.

121100031213030 is a `hidden beast` number, since 121 + 100 + 0 + 312 + 130 + 3 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 121100031212994 and 121100031213012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3292443240 + ... + 3292480020.

It is an arithmetic number, because the mean of its divisors is an integer number (1671875142795).

Almost surely, 2^{121100031213030} is an apocalyptic number.

121100031213030 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 121100031213030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160500013708320).

121100031213030 is an abundant number, since it is smaller than the sum of its proper divisors (199899996203610).

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

121100031213030 is a wasteful number, since it uses less digits than its factorization.

121100031213030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40327 (or 40324 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 121100031213030 its reverse (30312130001121), we get a palindrome (151412161214151).

The spelling of 121100031213030 in words is "one hundred twenty-one trillion, one hundred billion, thirty-one million, two hundred thirteen thousand, thirty".