15233121132 has 12 divisors (see below), whose sum is σ = 35543949336. Its totient is φ = 5077707040.

The previous prime is 15233121121. The next prime is 15233121179. The reversal of 15233121132 is 23112133251.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×15233121132² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634713369 + ... + 634713392.

It is an arithmetic number, because the mean of its divisors is an integer number (2961995778).

Almost surely, 2^15233121132 is an apocalyptic number.

15233121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15233121132 is an abundant number, since it is smaller than the sum of its proper divisors (20310828204).

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

15233121132 is a wasteful number, since it uses less digits than its factorization.

15233121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269426768 (or 1269426766 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

Adding to 15233121132 its reverse (23112133251), we get a palindrome (38345254383).

The spelling of 15233121132 in words is "fifteen billion, two hundred thirty-three million, one hundred twenty-one thousand, one hundred thirty-two".