15232121430 has 32 divisors (see below), whose sum is σ = 37334905344. Its totient is φ = 3975475296.

The previous prime is 15232121423. The next prime is 15232121491. The reversal of 15232121430 is 3412123251.

It is a self number, because there is not a number n which added to its sum of digits gives 15232121430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5400052 + ... + 5402871.

It is an arithmetic number, because the mean of its divisors is an integer number (1166715792).

Almost surely, 2^15232121430 is an apocalyptic number.

15232121430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15232121430 is an abundant number, since it is smaller than the sum of its proper divisors (22102783914).

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

15232121430 is a wasteful number, since it uses less digits than its factorization.

15232121430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802980.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 15232121430 its reverse (3412123251), we get a palindrome (18644244681).

The spelling of 15232121430 in words is "fifteen billion, two hundred thirty-two million, one hundred twenty-one thousand, four hundred thirty".