121813335284 has 12 divisors (see below), whose sum is σ = 214057875108. Its totient is φ = 60653942400.

The previous prime is 121813335283. The next prime is 121813335337. The reversal of 121813335284 is 482533318121.

It can be written as a sum of positive squares in 2 ways, for example, as 70453084900 + 51360250384 = 265430^2 + 226628^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121813335283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63180227 + ... + 63182154.

It is an arithmetic number, because the mean of its divisors is an integer number (17838156259).

Almost surely, 2^121813335284 is an apocalyptic number.

It is an amenable number.

121813335284 is a deficient number, since it is larger than the sum of its proper divisors (92244539824).

121813335284 is a wasteful number, since it uses less digits than its factorization.

121813335284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126362626 (or 126362624 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The spelling of 121813335284 in words is "one hundred twenty-one billion, eight hundred thirteen million, three hundred thirty-five thousand, two hundred eighty-four".