124012111 has 2 divisors, whose sum is σ = 124012112. Its totient is φ = 124012110.

The previous prime is 124012099. The next prime is 124012139. The reversal of 124012111 is 111210421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124012111 - 2⁷ = 124011983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124012091 and 124012100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124019111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62006055 + 62006056.

It is an arithmetic number, because the mean of its divisors is an integer number (62006056).

Almost surely, 2^124012111 is an apocalyptic number.

124012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

124012111 is an equidigital number, since it uses as much as digits as its factorization.

124012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 124012111 is about 11136.0725123358. The cubic root of 124012111 is about 498.6793293963.

Adding to 124012111 its reverse (111210421), we get a palindrome (235222532).

The spelling of 124012111 in words is "one hundred twenty-four million, twelve thousand, one hundred eleven".