121452520441 has 16 divisors (see below), whose sum is σ = 145097927424. Its totient is φ = 99397134144.

The previous prime is 121452520439. The next prime is 121452520451. The reversal of 121452520441 is 144025254121.

It is not a de Polignac number, because 121452520441 - 2¹ = 121452520439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121452520451) 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, 587490 + ... + 766843.

It is an arithmetic number, because the mean of its divisors is an integer number (9068620464).

Almost surely, 2^121452520441 is an apocalyptic number.

It is an amenable number.

121452520441 is a deficient number, since it is larger than the sum of its proper divisors (23645406983).

121452520441 is a wasteful number, since it uses less digits than its factorization.

121452520441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354920.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 121452520441 its reverse (144025254121), we get a palindrome (265477774562).

The spelling of 121452520441 in words is "one hundred twenty-one billion, four hundred fifty-two million, five hundred twenty thousand, four hundred forty-one".