15121434000 has 160 divisors (see below), whose sum is σ = 49185137664. Its totient is φ = 3996518400.

The previous prime is 15121433981. The next prime is 15121434001. The reversal of 15121434000 is 43412151.

It is not an unprimeable number, because it can be changed into a prime (15121434001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 666849 + ... + 689151.

Almost surely, 2^15121434000 is an apocalyptic number.

15121434000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15121434000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24592568832).

15121434000 is an abundant number, since it is smaller than the sum of its proper divisors (34063703664).

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

15121434000 is a wasteful number, since it uses less digits than its factorization.

15121434000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22442 (or 22426 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 15121434000 its reverse (43412151), we get a palindrome (15164846151).

The spelling of 15121434000 in words is "fifteen billion, one hundred twenty-one million, four hundred thirty-four thousand".