121434020532020 has 72 divisors (see below), whose sum is σ = 297500852781216. Its totient is φ = 41514536997696.

The previous prime is 121434020531959. The next prime is 121434020532023. The reversal of 121434020532020 is 20235020434121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121434020532023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178207874 + ... + 178887993.

It is an arithmetic number, because the mean of its divisors is an integer number (4131956288628).

Almost surely, 2^{121434020532020} is an apocalyptic number.

121434020532020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121434020532020 is an abundant number, since it is smaller than the sum of its proper divisors (176066832249196).

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

121434020532020 is a wasteful number, since it uses less digits than its factorization.

121434020532020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357096237 (or 357096228 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 121434020532020 its reverse (20235020434121), we get a palindrome (141669040966141).

The spelling of 121434020532020 in words is "one hundred twenty-one trillion, four hundred thirty-four billion, twenty million, five hundred thirty-two thousand, twenty".