121327747040 has 24 divisors (see below), whose sum is σ = 286636802760. Its totient is φ = 48531098752.

The previous prime is 121327747033. The next prime is 121327747067. The reversal of 121327747040 is 40747723121.

It is a junction number, because it is equal to n+sod(n) for n = 121327746985 and 121327747003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379149050 + ... + 379149369.

It is an arithmetic number, because the mean of its divisors is an integer number (11943200115).

Almost surely, 2^121327747040 is an apocalyptic number.

121327747040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121327747040 is an abundant number, since it is smaller than the sum of its proper divisors (165309055720).

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

121327747040 is an equidigital number, since it uses as much as digits as its factorization.

121327747040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758298434 (or 758298426 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The spelling of 121327747040 in words is "one hundred twenty-one billion, three hundred twenty-seven million, seven hundred forty-seven thousand, forty".