11061921 has 8 divisors (see below), whose sum is σ = 15883840. Its totient is φ = 6807312.

The previous prime is 11061887. The next prime is 11061931. The reversal of 11061921 is 12916011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11061921 - 2¹⁵ = 11029153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11061931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141781 + ... + 141858.

It is an arithmetic number, because the mean of its divisors is an integer number (1985480).

Almost surely, 2^11061921 is an apocalyptic number.

It is an amenable number.

11061921 is a deficient number, since it is larger than the sum of its proper divisors (4821919).

11061921 is a wasteful number, since it uses less digits than its factorization.

11061921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283655.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 11061921 is about 3325.9466321635. The cubic root of 11061921 is about 222.8145347419.

Adding to 11061921 its reverse (12916011), we get a palindrome (23977932).

The spelling of 11061921 in words is "eleven million, sixty-one thousand, nine hundred twenty-one".