124212031 has 4 divisors (see below), whose sum is σ = 124974232. Its totient is φ = 123449832.

The previous prime is 124211999. The next prime is 124212041. The reversal of 124212031 is 130212421.

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 124212031 - 2⁵ = 124211999 is a prime.

It is a super-2 number, since 2×124212031² = 30857257290289922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124211996 and 124212014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124212041) 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, 380856 + ... + 381181.

It is an arithmetic number, because the mean of its divisors is an integer number (31243558).

Almost surely, 2^124212031 is an apocalyptic number.

124212031 is a deficient number, since it is larger than the sum of its proper divisors (762201).

124212031 is an equidigital number, since it uses as much as digits as its factorization.

124212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762200.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 124212031 is about 11145.0451322550. The cubic root of 124212031 is about 498.9471592755.

Adding to 124212031 its reverse (130212421), we get a palindrome (254424452).

The spelling of 124212031 in words is "one hundred twenty-four million, two hundred twelve thousand, thirty-one".