121440140132 has 24 divisors (see below), whose sum is σ = 214740083712. Its totient is φ = 60089126400.

The previous prime is 121440140119. The next prime is 121440140153. The reversal of 121440140132 is 231041044121.

It is a junction number, because it is equal to n+sod(n) for n = 121440140098 and 121440140107.

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, 264344 + ... + 559247.

It is an arithmetic number, because the mean of its divisors is an integer number (8947503488).

Almost surely, 2^121440140132 is an apocalyptic number.

It is an amenable number.

121440140132 is a deficient number, since it is larger than the sum of its proper divisors (93299943580).

121440140132 is a wasteful number, since it uses less digits than its factorization.

121440140132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823979 (or 823977 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121440140132 its reverse (231041044121), we get a palindrome (352481184253).

The spelling of 121440140132 in words is "one hundred twenty-one billion, four hundred forty million, one hundred forty thousand, one hundred thirty-two".