121312204302 has 16 divisors (see below), whose sum is σ = 255394114560. Its totient is φ = 38309117112.

The previous prime is 121312204297. The next prime is 121312204361. The reversal of 121312204302 is 203402213121.

It is a super-2 number, since 2×121312204302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 532070958 + ... + 532071185.

It is an arithmetic number, because the mean of its divisors is an integer number (15962132160).

Almost surely, 2^121312204302 is an apocalyptic number.

121312204302 is an abundant number, since it is smaller than the sum of its proper divisors (134081910258).

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

121312204302 is a wasteful number, since it uses less digits than its factorization.

121312204302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064142167.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121312204302 its reverse (203402213121), we get a palindrome (324714417423).

The spelling of 121312204302 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred four thousand, three hundred two".