242120411452520 has 128 divisors (see below), whose sum is σ = 549964896998400. Its totient is φ = 95930593382400.

The previous prime is 242120411452457. The next prime is 242120411452559. The reversal of 242120411452520 is 25254114021242.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1282805516 + ... + 1282994244.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600757800).

Almost surely, 2^{242120411452520} is an apocalyptic number.

242120411452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242120411452520 is an abundant number, since it is smaller than the sum of its proper divisors (307844485545880).

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

242120411452520 is a wasteful number, since it uses less digits than its factorization.

242120411452520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189699 (or 189695 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 242120411452520 its reverse (25254114021242), we get a palindrome (267374525473762).

The spelling of 242120411452520 in words is "two hundred forty-two trillion, one hundred twenty billion, four hundred eleven million, four hundred fifty-two thousand, five hundred twenty".