121032120213020 has 24 divisors (see below), whose sum is σ = 254176383392064. Its totient is φ = 48411146952896.

The previous prime is 121032120213019. The next prime is 121032120213029. The reversal of 121032120213020 is 20312021230121.

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 = 121032120212983 and 121032120213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121032120213029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105737279 + ... + 106875798.

It is an arithmetic number, because the mean of its divisors is an integer number (10590682641336).

Almost surely, 2^{121032120213020} is an apocalyptic number.

121032120213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121032120213020 is an abundant number, since it is smaller than the sum of its proper divisors (133144263179044).

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

121032120213020 is a wasteful number, since it uses less digits than its factorization.

121032120213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212641549 (or 212641547 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121032120213020 its reverse (20312021230121), we get a palindrome (141344141443141).

The spelling of 121032120213020 in words is "one hundred twenty-one trillion, thirty-two billion, one hundred twenty million, two hundred thirteen thousand, twenty".