121751530750 has 32 divisors (see below), whose sum is σ = 241325866080. Its totient is φ = 45835868800.

The previous prime is 121751530741. The next prime is 121751530787. The reversal of 121751530750 is 57035157121.

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 15 ways as a sum of consecutive naturals, for example, 14319460 + ... + 14327959.

It is an arithmetic number, because the mean of its divisors is an integer number (7541433315).

Almost surely, 2^121751530750 is an apocalyptic number.

121751530750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121751530750 is a deficient number, since it is larger than the sum of its proper divisors (119574335330).

121751530750 is a wasteful number, since it uses less digits than its factorization.

121751530750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28647453 (or 28647443 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 37.

Adding to 121751530750 its reverse (57035157121), we get a palindrome (178786687871).

The spelling of 121751530750 in words is "one hundred twenty-one billion, seven hundred fifty-one million, five hundred thirty thousand, seven hundred fifty".