1042311131 has 4 divisors (see below), whose sum is σ = 1043067264. Its totient is φ = 1041555000.

The previous prime is 1042311121. The next prime is 1042311167. The reversal of 1042311131 is 1311132401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1311132401 = 229 ⋅5725469.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042311131 is a prime.

It is a super-2 number, since 2×1042311131² = 2172824987612998322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042311121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375995 + ... + 378756.

It is an arithmetic number, because the mean of its divisors is an integer number (260766816).

Almost surely, 2^1042311131 is an apocalyptic number.

1042311131 is a deficient number, since it is larger than the sum of its proper divisors (756133).

1042311131 is an equidigital number, since it uses as much as digits as its factorization.

1042311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756132.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1042311131 is about 32284.8436731541. The cubic root of 1042311131 is about 1013.9093434844.

Adding to 1042311131 its reverse (1311132401), we get a palindrome (2353443532).

The spelling of 1042311131 in words is "one billion, forty-two million, three hundred eleven thousand, one hundred thirty-one".