121313302340 has 12 divisors (see below), whose sum is σ = 254757934956. Its totient is φ = 48525320928.

The previous prime is 121313302291. The next prime is 121313302373. The reversal of 121313302340 is 43203313121.

It can be written as a sum of positive squares in 2 ways, for example, as 46096948804 + 75216353536 = 214702^2 + 274256^2 .

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 3 ways as a sum of consecutive naturals, for example, 3032832539 + ... + 3032832578.

It is an arithmetic number, because the mean of its divisors is an integer number (21229827913).

Almost surely, 2^121313302340 is an apocalyptic number.

121313302340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121313302340 is an abundant number, since it is smaller than the sum of its proper divisors (133444632616).

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

121313302340 is a wasteful number, since it uses less digits than its factorization.

121313302340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065665126 (or 6065665124 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121313302340 its reverse (43203313121), we get a palindrome (164516615461).

The spelling of 121313302340 in words is "one hundred twenty-one billion, three hundred thirteen million, three hundred two thousand, three hundred forty".