15121184881 has 8 divisors (see below), whose sum is σ = 16522581024. Its totient is φ = 13724245920.

The previous prime is 15121184879. The next prime is 15121184899. The reversal of 15121184881 is 18848112151.

15121184881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 15121184881 - 2¹ = 15121184879 is a prime.

It is a super-2 number, since 2×15121184881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15121184831) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1107195 + ... + 1120768.

It is an arithmetic number, because the mean of its divisors is an integer number (2065322628).

Almost surely, 2^15121184881 is an apocalyptic number.

15121184881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15121184881 is a deficient number, since it is larger than the sum of its proper divisors (1401396143).

15121184881 is a wasteful number, since it uses less digits than its factorization.

15121184881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228591.

The product of its digits is 20480, while the sum is 40.

It can be divided in two parts, 15121 and 184881, that added together give a palindrome (200002).

The spelling of 15121184881 in words is "fifteen billion, one hundred twenty-one million, one hundred eighty-four thousand, eight hundred eighty-one".