13121066 has 16 divisors (see below), whose sum is σ = 23042880. Its totient is φ = 5485920.

The previous prime is 13121047. The next prime is 13121071. The reversal of 13121066 is 66012131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (1440180).

Almost surely, 2^13121066 is an apocalyptic number.

13121066 is a deficient number, since it is larger than the sum of its proper divisors (9921814).

13121066 is a wasteful number, since it uses less digits than its factorization.

13121066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22909.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13121066 is about 3622.3012022746. The cubic root of 13121066 is about 235.8611291584.

Adding to 13121066 its reverse (66012131), we get a palindrome (79133197).

The spelling of 13121066 in words is "thirteen million, one hundred twenty-one thousand, sixty-six".