11977123 has 2 divisors, whose sum is σ = 11977124. Its totient is φ = 11977122.

The previous prime is 11977117. The next prime is 11977153. The reversal of 11977123 is 32177911.

11977123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11977123 - 2⁹ = 11976611 is a prime.

It is not a weakly prime, because it can be changed into another prime (11977153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5988561 + 5988562.

It is an arithmetic number, because the mean of its divisors is an integer number (5988562).

Almost surely, 2^11977123 is an apocalyptic number.

11977123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11977123 is an equidigital number, since it uses as much as digits as its factorization.

11977123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 31.

The square root of 11977123 is about 3460.7980293568. The cubic root of 11977123 is about 228.7972691391.

It can be divided in two parts, 11977 and 123, that added together give a square (12100 = 110²).

The spelling of 11977123 in words is "eleven million, nine hundred seventy-seven thousand, one hundred twenty-three".