13021124 has 6 divisors (see below), whose sum is σ = 22786974. Its totient is φ = 6510560.

The previous prime is 13021117. The next prime is 13021139. The reversal of 13021124 is 42112031.

It can be written as a sum of positive squares in only one way, i.e., 10562500 + 2458624 = 3250^2 + 1568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13021099 and 13021108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1627637 + ... + 1627644.

It is an arithmetic number, because the mean of its divisors is an integer number (3797829).

Almost surely, 2^13021124 is an apocalyptic number.

It is an amenable number.

13021124 is a deficient number, since it is larger than the sum of its proper divisors (9765850).

13021124 is a wasteful number, since it uses less digits than its factorization.

13021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255285 (or 3255283 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13021124 is about 3608.4794581652. The cubic root of 13021124 is about 235.2607577852.

Adding to 13021124 its reverse (42112031), we get a palindrome (55133155).

The spelling of 13021124 in words is "thirteen million, twenty-one thousand, one hundred twenty-four".