1012443316 has 6 divisors (see below), whose sum is σ = 1771775810. Its totient is φ = 506221656.

The previous prime is 1012443301. The next prime is 1012443317. The reversal of 1012443316 is 6133442101.

It can be written as a sum of positive squares in only one way, i.e., 615238416 + 397204900 = 24804^2 + 19930^2 .

It is a super-2 number, since 2×1012443316² = 2050082936226151712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012443317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126555411 + ... + 126555418.

Almost surely, 2^1012443316 is an apocalyptic number.

It is an amenable number.

1012443316 is a deficient number, since it is larger than the sum of its proper divisors (759332494).

1012443316 is a wasteful number, since it uses less digits than its factorization.

1012443316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253110833 (or 253110831 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1012443316 is about 31818.9144377994. The cubic root of 1012443316 is about 1004.1306859403.

Adding to 1012443316 its reverse (6133442101), we get a palindrome (7145885417).

The spelling of 1012443316 in words is "one billion, twelve million, four hundred forty-three thousand, three hundred sixteen".