11425015121 has 8 divisors (see below), whose sum is σ = 13027619304. Its totient is φ = 9925804800.

The previous prime is 11425015109. The next prime is 11425015139. The reversal of 11425015121 is 12151052411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2757405121 + 8667610000 = 52511^2 + 93100^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11425015121 - 2²⁶ = 11357906257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11425015181) 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 7 ways as a sum of consecutive naturals, for example, 25848230 + ... + 25848671.

It is an arithmetic number, because the mean of its divisors is an integer number (1628452413).

Almost surely, 2^11425015121 is an apocalyptic number.

It is an amenable number.

11425015121 is a deficient number, since it is larger than the sum of its proper divisors (1602604183).

11425015121 is a wasteful number, since it uses less digits than its factorization.

11425015121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51696931.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 11425015121 its reverse (12151052411), we get a palindrome (23576067532).

The spelling of 11425015121 in words is "eleven billion, four hundred twenty-five million, fifteen thousand, one hundred twenty-one".