1124012213 has 4 divisors (see below), whose sum is σ = 1124295360. Its totient is φ = 1123729068.

The previous prime is 1124012179. The next prime is 1124012221. The reversal of 1124012213 is 3122104211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3122104211 = 2963 ⋅1053697.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1124012213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1124012191 and 1124012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124012713) 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, 135533 + ... + 143586.

It is an arithmetic number, because the mean of its divisors is an integer number (281073840).

Almost surely, 2^1124012213 is an apocalyptic number.

It is an amenable number.

1124012213 is a deficient number, since it is larger than the sum of its proper divisors (283147).

1124012213 is an equidigital number, since it uses as much as digits as its factorization.

1124012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283146.

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

The square root of 1124012213 is about 33526.2913696102. The cubic root of 1124012213 is about 1039.7374253909.

Adding to 1124012213 its reverse (3122104211), we get a palindrome (4246116424).

The spelling of 1124012213 in words is "one billion, one hundred twenty-four million, twelve thousand, two hundred thirteen".