121052431125 has 32 divisors (see below), whose sum is σ = 223812501120. Its totient is φ = 64561294800.

The previous prime is 121052431111. The next prime is 121052431169. The reversal of 121052431125 is 521134250121.

It is a happy number.

121052431125 is a `hidden beast` number, since 1 + 2 + 10 + 524 + 3 + 1 + 125 = 666.

It is not a de Polignac number, because 121052431125 - 2⁴ = 121052431109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17930319 + ... + 17937068.

It is an arithmetic number, because the mean of its divisors is an integer number (6994140660).

Almost surely, 2^121052431125 is an apocalyptic number.

121052431125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121052431125 is a deficient number, since it is larger than the sum of its proper divisors (102760069995).

121052431125 is an equidigital number, since it uses as much as digits as its factorization.

121052431125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35867411 (or 35867395 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 121052431125 its reverse (521134250121), we get a palindrome (642186681246).

The spelling of 121052431125 in words is "one hundred twenty-one billion, fifty-two million, four hundred thirty-one thousand, one hundred twenty-five".