1031343240 has 64 divisors (see below), whose sum is σ = 3200731200. Its totient is φ = 265540352.

The previous prime is 1031343239. The next prime is 1031343241. The reversal of 1031343240 is 423431301.

It is an interprime number because it is at equal distance from previous prime (1031343239) and next prime (1031343241).

It is not an unprimeable number, because it can be changed into a prime (1031343241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144702 + ... + 151661.

It is an arithmetic number, because the mean of its divisors is an integer number (50011425).

Almost surely, 2^1031343240 is an apocalyptic number.

1031343240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031343240 is an abundant number, since it is smaller than the sum of its proper divisors (2169387960).

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

1031343240 is a wasteful number, since it uses less digits than its factorization.

1031343240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296406 (or 296402 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1031343240 is about 32114.5331586807. The cubic root of 1031343240 is about 1010.3404531445.

Adding to 1031343240 its reverse (423431301), we get a palindrome (1454774541).

The spelling of 1031343240 in words is "one billion, thirty-one million, three hundred forty-three thousand, two hundred forty".