1013231213 has 4 divisors (see below), whose sum is σ = 1057284768. Its totient is φ = 969177660.

The previous prime is 1013231209. The next prime is 1013231267. The reversal of 1013231213 is 3121323101.

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.

It is a cyclic number.

It is not a de Polignac number, because 1013231213 - 2² = 1013231209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013231191 and 1013231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013201213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22026743 + ... + 22026788.

It is an arithmetic number, because the mean of its divisors is an integer number (264321192).

Almost surely, 2^1013231213 is an apocalyptic number.

It is an amenable number.

1013231213 is a deficient number, since it is larger than the sum of its proper divisors (44053555).

1013231213 is an equidigital number, since it uses as much as digits as its factorization.

1013231213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44053554.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1013231213 is about 31831.2929834778. The cubic root of 1013231213 is about 1004.3910944007.

Adding to 1013231213 its reverse (3121323101), we get a palindrome (4134554314).

The spelling of 1013231213 in words is "one billion, thirteen million, two hundred thirty-one thousand, two hundred thirteen".