121553040746 has 8 divisors (see below), whose sum is σ = 182337268320. Its totient is φ = 60773951308.

The previous prime is 121553040737. The next prime is 121553040769. The reversal of 121553040746 is 647040355121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224836 + ... + 1320351.

It is an arithmetic number, because the mean of its divisors is an integer number (22792158540).

Almost surely, 2^121553040746 is an apocalyptic number.

121553040746 is a deficient number, since it is larger than the sum of its proper divisors (60784227574).

121553040746 is a wasteful number, since it uses less digits than its factorization.

121553040746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569068.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 121553040746 its reverse (647040355121), we get a palindrome (768593395867).

The spelling of 121553040746 in words is "one hundred twenty-one billion, five hundred fifty-three million, forty thousand, seven hundred forty-six".