124143011 has 4 divisors (see below), whose sum is σ = 124192392. Its totient is φ = 124093632.

The previous prime is 124143007. The next prime is 124143023. The reversal of 124143011 is 110341421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124143011 - 2² = 124143007 is a prime.

It is a super-2 number, since 2×124143011² = 30822974360292242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124143001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20705 + ... + 26018.

It is an arithmetic number, because the mean of its divisors is an integer number (31048098).

Almost surely, 2^124143011 is an apocalyptic number.

124143011 is a deficient number, since it is larger than the sum of its proper divisors (49381).

124143011 is an equidigital number, since it uses as much as digits as its factorization.

124143011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49380.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 124143011 is about 11141.9482587203. The cubic root of 124143011 is about 498.8547267011.

Adding to 124143011 its reverse (110341421), we get a palindrome (234484432).

The spelling of 124143011 in words is "one hundred twenty-four million, one hundred forty-three thousand, eleven".