1012443231 has 16 divisors (see below), whose sum is σ = 1378841984. Its totient is φ = 660632544.

The previous prime is 1012443221. The next prime is 1012443239. The reversal of 1012443231 is 1323442101.

It is not a de Polignac number, because 1012443231 - 2¹⁵ = 1012410463 is a prime.

It is a super-2 number, since 2×1012443231² = 2050082591995438722, 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 = 1012443198 and 1012443207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012443239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15516 + ... + 47598.

It is an arithmetic number, because the mean of its divisors is an integer number (86177624).

Almost surely, 2^1012443231 is an apocalyptic number.

1012443231 is a deficient number, since it is larger than the sum of its proper divisors (366398753).

1012443231 is a wasteful number, since it uses less digits than its factorization.

1012443231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32310.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1012443231 is about 31818.9131021159. The cubic root of 1012443231 is about 1004.1306578396.

Adding to 1012443231 its reverse (1323442101), we get a palindrome (2335885332).

The spelling of 1012443231 in words is "one billion, twelve million, four hundred forty-three thousand, two hundred thirty-one".