1031311042 has 8 divisors (see below), whose sum is σ = 1547158032. Its totient is φ = 515591700.

The previous prime is 1031311037. The next prime is 1031311049. The reversal of 1031311042 is 2401131301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1031311042² = 2127204930702251528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1031311049) 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, 8184 + ... + 46147.

It is an arithmetic number, because the mean of its divisors is an integer number (193394754).

Almost surely, 2^1031311042 is an apocalyptic number.

1031311042 is a deficient number, since it is larger than the sum of its proper divisors (515846990).

1031311042 is an equidigital number, since it uses as much as digits as its factorization.

1031311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63824.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1031311042 is about 32114.0318552498. The cubic root of 1031311042 is about 1010.3299389338.

Adding to 1031311042 its reverse (2401131301), we get a palindrome (3432442343).

The spelling of 1031311042 in words is "one billion, thirty-one million, three hundred eleven thousand, forty-two".