1031130340 has 12 divisors (see below), whose sum is σ = 2165373756. Its totient is φ = 412452128.

The previous prime is 1031130307. The next prime is 1031130349. The reversal of 1031130340 is 430311301.

It can be written as a sum of positive squares in 2 ways, for example, as 215913636 + 815216704 = 14694^2 + 28552^2 .

It is not an unprimeable number, because it can be changed into a prime (1031130349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25778239 + ... + 25778278.

It is an arithmetic number, because the mean of its divisors is an integer number (180447813).

Almost surely, 2^1031130340 is an apocalyptic number.

1031130340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031130340 is an abundant number, since it is smaller than the sum of its proper divisors (1134243416).

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

1031130340 is a wasteful number, since it uses less digits than its factorization.

1031130340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51556526 (or 51556524 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1031130340 is about 32111.2182889407. The cubic root of 1031130340 is about 1010.2709268941.

Adding to 1031130340 its reverse (430311301), we get a palindrome (1461441641).

The spelling of 1031130340 in words is "one billion, thirty-one million, one hundred thirty thousand, three hundred forty".