121231414340 has 24 divisors (see below), whose sum is σ = 254608186560. Its totient is φ = 48488334048.

The previous prime is 121231414327. The next prime is 121231414351. The reversal of 121231414340 is 43414132121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24242 + ... + 493001.

It is an arithmetic number, because the mean of its divisors is an integer number (10608674440).

Almost surely, 2^121231414340 is an apocalyptic number.

121231414340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121231414340 is an abundant number, since it is smaller than the sum of its proper divisors (133376772220).

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

121231414340 is a wasteful number, since it uses less digits than its factorization.

121231414340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528971 (or 528969 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121231414340 its reverse (43414132121), we get a palindrome (164645546461).

The spelling of 121231414340 in words is "one hundred twenty-one billion, two hundred thirty-one million, four hundred fourteen thousand, three hundred forty".