121335421330 has 16 divisors (see below), whose sum is σ = 218423254104. Its totient is φ = 48529836160.

The previous prime is 121335421289. The next prime is 121335421357. The reversal of 121335421330 is 33124533121.

It can be written as a sum of positive squares in 4 ways, for example, as 30660360201 + 90675061129 = 175101^2 + 301123^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422677 + ... + 649096.

Almost surely, 2^121335421330 is an apocalyptic number.

121335421330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121335421330 is a deficient number, since it is larger than the sum of its proper divisors (97087832774).

121335421330 is a wasteful number, since it uses less digits than its factorization.

121335421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083101.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 121335421330 its reverse (33124533121), we get a palindrome (154459954451).

The spelling of 121335421330 in words is "one hundred twenty-one billion, three hundred thirty-five million, four hundred twenty-one thousand, three hundred thirty".