121040024240000 has 80 divisors (see below), whose sum is σ = 301321575543120. Its totient is φ = 48416009664000.

The previous prime is 121040024239933. The next prime is 121040024240081. The reversal of 121040024240000 is 42420040121.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 756420152 + ... + 756580151.

It is an arithmetic number, because the mean of its divisors is an integer number (3766519694289).

Almost surely, 2^{121040024240000} is an apocalyptic number.

121040024240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121040024240000 is an abundant number, since it is smaller than the sum of its proper divisors (180281551303120).

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

121040024240000 is an frugal number, since it uses more digits than its factorization.

121040024240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513000337 (or 1513000310 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 121040024240000 its reverse (42420040121), we get a palindrome (121082444280121).

The spelling of 121040024240000 in words is "one hundred twenty-one trillion, forty billion, twenty-four million, two hundred forty thousand".