11556023 has 8 divisors (see below), whose sum is σ = 11799840. Its totient is φ = 11314080.

The previous prime is 11556019. The next prime is 11556037. The reversal of 11556023 is 32065511.

11556023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11556023 - 2² = 11556019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11556023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11556053) 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, 23486 + ... + 23972.

It is an arithmetic number, because the mean of its divisors is an integer number (1474980).

Almost surely, 2^11556023 is an apocalyptic number.

11556023 is a deficient number, since it is larger than the sum of its proper divisors (243817).

11556023 is an equidigital number, since it uses as much as digits as its factorization.

11556023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 11556023 is about 3399.4150967483. The cubic root of 11556023 is about 226.0838112937.

It can be divided in two parts, 11 and 556023, that multiplied together give a triangular number (6116253 = T₃₄₉₇).

The spelling of 11556023 in words is "eleven million, five hundred fifty-six thousand, twenty-three".