1042311331 has 4 divisors (see below), whose sum is σ = 1059398464. Its totient is φ = 1025224200.

The previous prime is 1042311323. The next prime is 1042311337. The reversal of 1042311331 is 1331132401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1042311331 - 2³ = 1042311323 is a prime.

It is a super-2 number, since 2×1042311331² = 2172825821461983122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042311299 and 1042311308.

It is not an unprimeable number, because it can be changed into a prime (1042311337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8543475 + ... + 8543596.

It is an arithmetic number, because the mean of its divisors is an integer number (264849616).

Almost surely, 2^1042311331 is an apocalyptic number.

1042311331 is a deficient number, since it is larger than the sum of its proper divisors (17087133).

1042311331 is an equidigital number, since it uses as much as digits as its factorization.

1042311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17087132.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1042311331 is about 32284.8467705826. The cubic root of 1042311331 is about 1013.9094083344.

Adding to 1042311331 its reverse (1331132401), we get a palindrome (2373443732).

The spelling of 1042311331 in words is "one billion, forty-two million, three hundred eleven thousand, three hundred thirty-one".