13060021 has 16 divisors (see below), whose sum is σ = 15160320. Its totient is φ = 11151360.

The previous prime is 13060013. The next prime is 13060057. The reversal of 13060021 is 12006031.

It is a cyclic number.

It is not a de Polignac number, because 13060021 - 2³ = 13060013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13059983 and 13060010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13060081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8565 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (947520).

Almost surely, 2^13060021 is an apocalyptic number.

It is an amenable number.

13060021 is a deficient number, since it is larger than the sum of its proper divisors (2100299).

13060021 is a wasteful number, since it uses less digits than its factorization.

13060021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13060021 is about 3613.8651053962. The cubic root of 13060021 is about 235.4947836861.

Adding to 13060021 its reverse (12006031), we get a palindrome (25066052).

The spelling of 13060021 in words is "thirteen million, sixty thousand, twenty-one".