121120303020 has 48 divisors (see below), whose sum is σ = 339730879488. Its totient is φ = 32242173120.

The previous prime is 121120303001. The next prime is 121120303033. The reversal of 121120303020 is 20303021121.

It is a super-2 number, since 2×121120303020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1733404 + ... + 1801923.

It is an arithmetic number, because the mean of its divisors is an integer number (7077726656).

Almost surely, 2^121120303020 is an apocalyptic number.

121120303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120303020 is an abundant number, since it is smaller than the sum of its proper divisors (218610576468).

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

121120303020 is a wasteful number, since it uses less digits than its factorization.

121120303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535910 (or 3535908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121120303020 its reverse (20303021121), we get a palindrome (141423324141).

The spelling of 121120303020 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred three thousand, twenty".