121325524509 has 16 divisors (see below), whose sum is σ = 184881881088. Its totient is φ = 69327036912.

The previous prime is 121325524487. The next prime is 121325524513. The reversal of 121325524509 is 905425523121.

It is not a de Polignac number, because 121325524509 - 2⁵ = 121325524477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121325524519) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1395184 + ... + 1479590.

It is an arithmetic number, because the mean of its divisors is an integer number (11555117568).

Almost surely, 2^121325524509 is an apocalyptic number.

It is an amenable number.

121325524509 is a deficient number, since it is larger than the sum of its proper divisors (63556356579).

121325524509 is an equidigital number, since it uses as much as digits as its factorization.

121325524509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152864.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 121325524509 in words is "one hundred twenty-one billion, three hundred twenty-five million, five hundred twenty-four thousand, five hundred nine".