121752404651 has 2 divisors, whose sum is σ = 121752404652. Its totient is φ = 121752404650.

The previous prime is 121752404519. The next prime is 121752404693. The reversal of 121752404651 is 156404257121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121752404651 - 2¹⁸ = 121752142507 is a prime.

It is not a weakly prime, because it can be changed into another prime (121752404251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60876202325 + 60876202326.

It is an arithmetic number, because the mean of its divisors is an integer number (60876202326).

Almost surely, 2^121752404651 is an apocalyptic number.

121752404651 is a deficient number, since it is larger than the sum of its proper divisors (1).

121752404651 is an equidigital number, since it uses as much as digits as its factorization.

121752404651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 121752404651 in words is "one hundred twenty-one billion, seven hundred fifty-two million, four hundred four thousand, six hundred fifty-one".