1020112144 has 40 divisors (see below), whose sum is σ = 2030291928. Its totient is φ = 496235520.

The previous prime is 1020112141. The next prime is 1020112153. The reversal of 1020112144 is 4412110201.

It is a happy number.

1020112144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 129686544 + 890425600 = 11388^2 + 29840^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1020112141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258474 + ... + 262390.

Almost surely, 2^1020112144 is an apocalyptic number.

It is an amenable number.

1020112144 is a deficient number, since it is larger than the sum of its proper divisors (1010179784).

1020112144 is a wasteful number, since it uses less digits than its factorization.

1020112144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1020112144 is about 31939.1944795106. The cubic root of 1020112144 is about 1006.6595992857.

Adding to 1020112144 its reverse (4412110201), we get a palindrome (5432222345).

The spelling of 1020112144 in words is "one billion, twenty million, one hundred twelve thousand, one hundred forty-four".