121403033120 has 48 divisors (see below), whose sum is σ = 286846356888. Its totient is φ = 48555847680.

The previous prime is 121403033083. The next prime is 121403033131. The reversal of 121403033120 is 21330304121.

It can be written as a sum of positive squares in 4 ways, for example, as 118080202384 + 3322830736 = 343628^2 + 57644^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121403033092 and 121403033101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614602 + ... + 1688118.

Almost surely, 2^121403033120 is an apocalyptic number.

121403033120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121403033120 is an abundant number, since it is smaller than the sum of its proper divisors (165443323768).

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

121403033120 is a wasteful number, since it uses less digits than its factorization.

121403033120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83853 (or 83845 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121403033120 its reverse (21330304121), we get a palindrome (142733337241).

The spelling of 121403033120 in words is "one hundred twenty-one billion, four hundred three million, thirty-three thousand, one hundred twenty".