1042310021 has 8 divisors (see below), whose sum is σ = 1089854784. Its totient is φ = 994950880.

The previous prime is 1042309991. The next prime is 1042310041. The reversal of 1042310021 is 1200132401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042310021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042309978 and 1042310005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042310041) 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 7 ways as a sum of consecutive naturals, for example, 34856 + ... + 57441.

It is an arithmetic number, because the mean of its divisors is an integer number (136231848).

Almost surely, 2^1042310021 is an apocalyptic number.

It is an amenable number.

1042310021 is a deficient number, since it is larger than the sum of its proper divisors (47544763).

1042310021 is an equidigital number, since it uses as much as digits as its factorization.

1042310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92811.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1042310021 is about 32284.8264824205. The cubic root of 1042310021 is about 1013.9089835663.

Adding to 1042310021 its reverse (1200132401), we get a palindrome (2242442422).

The spelling of 1042310021 in words is "one billion, forty-two million, three hundred ten thousand, twenty-one".