1338121524 has 12 divisors (see below), whose sum is σ = 3122283584. Its totient is φ = 446040504.

The previous prime is 1338121501. The next prime is 1338121583. The reversal of 1338121524 is 4251218331.

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

It is a junction number, because it is equal to n+sod(n) for n = 1338121491 and 1338121500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55755052 + ... + 55755075.

Almost surely, 2^1338121524 is an apocalyptic number.

It is an amenable number.

1338121524 is an abundant number, since it is smaller than the sum of its proper divisors (1784162060).

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

1338121524 is a wasteful number, since it uses less digits than its factorization.

1338121524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111510134 (or 111510132 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1338121524 is about 36580.3434100884. The cubic root of 1338121524 is about 1101.9583637375.

Adding to 1338121524 its reverse (4251218331), we get a palindrome (5589339855).

The spelling of 1338121524 in words is "one billion, three hundred thirty-eight million, one hundred twenty-one thousand, five hundred twenty-four".