121310202530 has 32 divisors (see below), whose sum is σ = 239922889920. Its totient is φ = 43795437120.

The previous prime is 121310202527. The next prime is 121310202569. The reversal of 121310202530 is 35202013121.

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 15 ways as a sum of consecutive naturals, for example, 3951689 + ... + 3982268.

It is an arithmetic number, because the mean of its divisors is an integer number (7497590310).

Almost surely, 2^121310202530 is an apocalyptic number.

121310202530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121310202530 is a deficient number, since it is larger than the sum of its proper divisors (118612687390).

121310202530 is a wasteful number, since it uses less digits than its factorization.

121310202530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934114.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 121310202530 its reverse (35202013121), we get a palindrome (156512215651).

The spelling of 121310202530 in words is "one hundred twenty-one billion, three hundred ten million, two hundred two thousand, five hundred thirty".