242121140443040 has 96 divisors (see below), whose sum is σ = 572459994086400. Its totient is φ = 96772498898944.

The previous prime is 242121140443033. The next prime is 242121140443067. The reversal of 242121140443040 is 40344041121242.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 242121140442988 and 242121140443006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056596957 + ... + 1056826083.

It is an arithmetic number, because the mean of its divisors is an integer number (5963124938400).

Almost surely, 2^{242121140443040} is an apocalyptic number.

242121140443040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242121140443040 is an abundant number, since it is smaller than the sum of its proper divisors (330338853643360).

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

242121140443040 is a wasteful number, since it uses less digits than its factorization.

242121140443040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234294 (or 234286 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 242121140443040 its reverse (40344041121242), we get a palindrome (282465181564282).

The spelling of 242121140443040 in words is "two hundred forty-two trillion, one hundred twenty-one billion, one hundred forty million, four hundred forty-three thousand, forty".