15120343134 has 72 divisors (see below), whose sum is σ = 35644290552. Its totient is φ = 4630167360.

The previous prime is 15120343103. The next prime is 15120343181. The reversal of 15120343134 is 43134302151.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15120343098 and 15120343107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 630084 + ... + 653640.

It is an arithmetic number, because the mean of its divisors is an integer number (495059591).

Almost surely, 2^15120343134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15120343134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17822145276).

15120343134 is an abundant number, since it is smaller than the sum of its proper divisors (20523947418).

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

15120343134 is a wasteful number, since it uses less digits than its factorization.

15120343134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23802 (or 23786 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 15120343134 its reverse (43134302151), we get a palindrome (58254645285).

The spelling of 15120343134 in words is "fifteen billion, one hundred twenty million, three hundred forty-three thousand, one hundred thirty-four".