4011323220 has 72 divisors (see below), whose sum is σ = 12174140160. Its totient is φ = 1069118400.

The previous prime is 4011323203. The next prime is 4011323237. The reversal of 4011323220 is 223231104.

4011323220 is a `hidden beast` number, since 401 + 13 + 232 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (4011323203) and next prime (4011323237).

It is a super-2 number, since 2×4011323220² = 32181427950622336800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4011323193 and 4011323202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418441 + ... + 427919.

It is an arithmetic number, because the mean of its divisors is an integer number (169085280).

Almost surely, 2^4011323220 is an apocalyptic number.

It is an amenable number.

4011323220 is an abundant number, since it is smaller than the sum of its proper divisors (8162816940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4011323220 is a wasteful number, since it uses less digits than its factorization.

4011323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11845 (or 11840 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4011323220 is about 63335.0078550560. The cubic root of 4011323220 is about 1588.8975150685.

Adding to 4011323220 its reverse (223231104), we get a palindrome (4234554324).

The spelling of 4011323220 in words is "four billion, eleven million, three hundred twenty-three thousand, two hundred twenty".