1012013231 has 4 divisors (see below), whose sum is σ = 1017150552. Its totient is φ = 1006875912.

The previous prime is 1012013227. The next prime is 1012013237. The reversal of 1012013231 is 1323102101.

1012013231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323102101 = 601 ⋅2201501.

It is a cyclic number.

It is not a de Polignac number, because 1012013231 - 2² = 1012013227 is a prime.

It is a super-2 number, since 2×1012013231² = 2048341559438118722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012013237) 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, 2568365 + ... + 2568758.

It is an arithmetic number, because the mean of its divisors is an integer number (254287638).

Almost surely, 2^1012013231 is an apocalyptic number.

1012013231 is a deficient number, since it is larger than the sum of its proper divisors (5137321).

1012013231 is an equidigital number, since it uses as much as digits as its factorization.

1012013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137320.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1012013231 is about 31812.1553969548. The cubic root of 1012013231 is about 1003.9884812015.

Adding to 1012013231 its reverse (1323102101), we get a palindrome (2335115332).

The spelling of 1012013231 in words is "one billion, twelve million, thirteen thousand, two hundred thirty-one".