121203033320 has 16 divisors (see below), whose sum is σ = 272706825060. Its totient is φ = 48481213312.

The previous prime is 121203033319. The next prime is 121203033379. The reversal of 121203033320 is 23330302121.

It can be written as a sum of positive squares in 2 ways, for example, as 120543673636 + 659359684 = 347194^2 + 25678^2 .

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 = 121203033292 and 121203033301.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1515037877 + ... + 1515037956.

Almost surely, 2^121203033320 is an apocalyptic number.

121203033320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121203033320 is an abundant number, since it is smaller than the sum of its proper divisors (151503791740).

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

121203033320 is a wasteful number, since it uses less digits than its factorization.

121203033320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030075844 (or 3030075840 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 121203033320 its reverse (23330302121), we get a palindrome (144533335441).

The spelling of 121203033320 in words is "one hundred twenty-one billion, two hundred three million, thirty-three thousand, three hundred twenty".