11921029 has 8 divisors (see below), whose sum is σ = 12659328. Its totient is φ = 11186880.

The previous prime is 11921027. The next prime is 11921051. The reversal of 11921029 is 92012911.

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

It is a cyclic number.

It is not a de Polignac number, because 11921029 - 2¹ = 11921027 is a prime.

It is a super-2 number, since 2×11921029² = 284221864837682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11920994 and 11921012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11921023) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6514 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (1582416).

Almost surely, 2^11921029 is an apocalyptic number.

It is an amenable number.

11921029 is a deficient number, since it is larger than the sum of its proper divisors (738299).

11921029 is a wasteful number, since it uses less digits than its factorization.

11921029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11921029 is about 3452.6843180343. The cubic root of 11921029 is about 228.4395248445.

The spelling of 11921029 in words is "eleven million, nine hundred twenty-one thousand, twenty-nine".