1031243312 has 60 divisors (see below), whose sum is σ = 2209598160. Its totient is φ = 465886080.

The previous prime is 1031243293. The next prime is 1031243351. The reversal of 1031243312 is 2133421301.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333389 + ... + 336467.

It is an arithmetic number, because the mean of its divisors is an integer number (36826636).

Almost surely, 2^1031243312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031243312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104799080).

1031243312 is an abundant number, since it is smaller than the sum of its proper divisors (1178354848).

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

1031243312 is a wasteful number, since it uses less digits than its factorization.

1031243312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282 (or 3265 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1031243312 is about 32112.9773144752. The cubic root of 1031243312 is about 1010.3078210851.

Adding to 1031243312 its reverse (2133421301), we get a palindrome (3164664613).

The spelling of 1031243312 in words is "one billion, thirty-one million, two hundred forty-three thousand, three hundred twelve".