13003121232 has 60 divisors (see below), whose sum is σ = 36404851860. Its totient is φ = 4332685824.

The previous prime is 13003121203. The next prime is 13003121291. The reversal of 13003121232 is 23212130031.

It can be written as a sum of positive squares in 2 ways, for example, as 8313062976 + 4690058256 = 91176^2 + 68484^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385428 + ... + 417804.

It is an arithmetic number, because the mean of its divisors is an integer number (606747531).

Almost surely, 2^13003121232 is an apocalyptic number.

13003121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13003121232 is an abundant number, since it is smaller than the sum of its proper divisors (23401730628).

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

13003121232 is a wasteful number, since it uses less digits than its factorization.

13003121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35180 (or 35171 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13003121232 its reverse (23212130031), we get a palindrome (36215251263).

The spelling of 13003121232 in words is "thirteen billion, three million, one hundred twenty-one thousand, two hundred thirty-two".