242120545402 has 16 divisors (see below), whose sum is σ = 370964385792. Its totient is φ = 118466532400.

The previous prime is 242120545393. The next prime is 242120545427. The reversal of 242120545402 is 204545021242.

242120545402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×242120545402³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437703 + ... + 822085.

It is an arithmetic number, because the mean of its divisors is an integer number (23185274112).

Almost surely, 2^242120545402 is an apocalyptic number.

242120545402 is a deficient number, since it is larger than the sum of its proper divisors (128843840390).

242120545402 is a wasteful number, since it uses less digits than its factorization.

242120545402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391133.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 242120545402 its reverse (204545021242), we get a palindrome (446665566644).

The spelling of 242120545402 in words is "two hundred forty-two billion, one hundred twenty million, five hundred forty-five thousand, four hundred two".