1004142431021 has 8 divisors (see below), whose sum is σ = 1019159409024. Its totient is φ = 989126328960.

The previous prime is 1004142431009. The next prime is 1004142431053. The reversal of 1004142431021 is 1201342414001.

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-1004142431021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004142431081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307101 + ... + 2707581.

It is an arithmetic number, because the mean of its divisors is an integer number (127394926128).

Almost surely, 2^{1004142431021} is an apocalyptic number.

It is an amenable number.

1004142431021 is a deficient number, since it is larger than the sum of its proper divisors (15016978003).

1004142431021 is an equidigital number, since it uses as much as digits as its factorization.

1004142431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437971.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1004142431021 its reverse (1201342414001), we get a palindrome (2205484845022).

The spelling of 1004142431021 in words is "one trillion, four billion, one hundred forty-two million, four hundred thirty-one thousand, twenty-one".