15501123450230 has 128 divisors (see below), whose sum is σ = 33386313977856. Its totient is φ = 5115914956800.

The previous prime is 15501123450229. The next prime is 15501123450311. The reversal of 15501123450230 is 3205432110551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15933074 + ... + 16877946.

It is an arithmetic number, because the mean of its divisors is an integer number (260830577952).

Almost surely, 2^{15501123450230} is an apocalyptic number.

15501123450230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15501123450230 is an abundant number, since it is smaller than the sum of its proper divisors (17885190527626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15501123450230 is a wasteful number, since it uses less digits than its factorization.

15501123450230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945222.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 15501123450230 its reverse (3205432110551), we get a palindrome (18706555560781).

The spelling of 15501123450230 in words is "fifteen trillion, five hundred one billion, one hundred twenty-three million, four hundred fifty thousand, two hundred thirty".