121504525411 has 4 divisors (see below), whose sum is σ = 121556209824. Its totient is φ = 121452841000.

The previous prime is 121504525339. The next prime is 121504525427. The reversal of 121504525411 is 114525405121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114525405121 = 2179 ⋅52558699.

It is a cyclic number.

It is not a de Polignac number, because 121504525411 - 2¹¹ = 121504523363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121504523411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25838680 + ... + 25843381.

It is an arithmetic number, because the mean of its divisors is an integer number (30389052456).

Almost surely, 2^121504525411 is an apocalyptic number.

121504525411 is a deficient number, since it is larger than the sum of its proper divisors (51684413).

121504525411 is an equidigital number, since it uses as much as digits as its factorization.

121504525411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51684412.

The product of its (nonzero) digits is 8000, while the sum is 31.

The spelling of 121504525411 in words is "one hundred twenty-one billion, five hundred four million, five hundred twenty-five thousand, four hundred eleven".