1031534120 has 16 divisors (see below), whose sum is σ = 2320951860. Its totient is φ = 412613632.

The previous prime is 1031534113. The next prime is 1031534131. The reversal of 1031534120 is 214351301.

It can be written as a sum of positive squares in 2 ways, for example, as 1013403556 + 18130564 = 31834^2 + 4258^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1031534092 and 1031534101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12894137 + ... + 12894216.

Almost surely, 2^1031534120 is an apocalyptic number.

1031534120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031534120 is an abundant number, since it is smaller than the sum of its proper divisors (1289417740).

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

1031534120 is a wasteful number, since it uses less digits than its factorization.

1031534120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25788364 (or 25788360 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1031534120 is about 32117.5048844084. The cubic root of 1031534120 is about 1010.4027802411.

Adding to 1031534120 its reverse (214351301), we get a palindrome (1245885421).

The spelling of 1031534120 in words is "one billion, thirty-one million, five hundred thirty-four thousand, one hundred twenty".