1031142144 has 36 divisors (see below), whose sum is σ = 2744343896. Its totient is φ = 343713792.

The previous prime is 1031142143. The next prime is 1031142149. The reversal of 1031142144 is 4412411301.

It is a super-2 number, since 2×1031142144² = 2126508242265833472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1031142144.

It is not an unprimeable number, because it can be changed into a prime (1031142143) 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, 670549 + ... + 672084.

Almost surely, 2^1031142144 is an apocalyptic number.

It is an amenable number.

1031142144 is an abundant number, since it is smaller than the sum of its proper divisors (1713201752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031142144 is an equidigital number, since it uses as much as digits as its factorization.

1031142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342652 (or 1342638 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1031142144 is about 32111.4020871092. The cubic root of 1031142144 is about 1010.2747819491.

Adding to 1031142144 its reverse (4412411301), we get a palindrome (5443553445).

The spelling of 1031142144 in words is "one billion, thirty-one million, one hundred forty-two thousand, one hundred forty-four".