11921127 has 16 divisors (see below), whose sum is σ = 16519680. Its totient is φ = 7641152.

The previous prime is 11921101. The next prime is 11921137. The reversal of 11921127 is 72112911.

It is a cyclic number.

It is not a de Polignac number, because 11921127 - 2⁸ = 11920871 is a prime.

It is a super-2 number, since 2×11921127² = 284226537900258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11921097 and 11921106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11921137) 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, 7603 + ... + 9035.

It is an arithmetic number, because the mean of its divisors is an integer number (1032480).

Almost surely, 2^11921127 is an apocalyptic number.

11921127 is a deficient number, since it is larger than the sum of its proper divisors (4598553).

11921127 is a wasteful number, since it uses less digits than its factorization.

11921127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 252, while the sum is 24.

The square root of 11921127 is about 3452.6985098615. The cubic root of 11921127 is about 228.4401508254.

The spelling of 11921127 in words is "eleven million, nine hundred twenty-one thousand, one hundred twenty-seven".