121451552041 has 4 divisors (see below), whose sum is σ = 121454350084. Its totient is φ = 121448754000.

The previous prime is 121451552021. The next prime is 121451552051. The reversal of 121451552041 is 140255154121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 120551312025 + 900240016 = 347205^2 + 30004^2 .

It is a cyclic number.

It is not a de Polignac number, because 121451552041 - 2¹³ = 121451543849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121451551994 and 121451552012.

It is not an unprimeable number, because it can be changed into a prime (121451552011) 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, 1332870 + ... + 1421071.

It is an arithmetic number, because the mean of its divisors is an integer number (30363587521).

Almost surely, 2^121451552041 is an apocalyptic number.

It is an amenable number.

121451552041 is a deficient number, since it is larger than the sum of its proper divisors (2798043).

121451552041 is an equidigital number, since it uses as much as digits as its factorization.

121451552041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798042.

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

The spelling of 121451552041 in words is "one hundred twenty-one billion, four hundred fifty-one million, five hundred fifty-two thousand, forty-one".