1004200031 has 4 divisors (see below), whose sum is σ = 1005412200. Its totient is φ = 1002987864.

The previous prime is 1004199991. The next prime is 1004200039. The reversal of 1004200031 is 1300024001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004200031 is a prime.

It is a super-2 number, since 2×1004200031² = 2016835404520801922, 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 = 1004199985 and 1004200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004200039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604841 + ... + 606498.

It is an arithmetic number, because the mean of its divisors is an integer number (251353050).

Almost surely, 2^1004200031 is an apocalyptic number.

1004200031 is a deficient number, since it is larger than the sum of its proper divisors (1212169).

1004200031 is an equidigital number, since it uses as much as digits as its factorization.

1004200031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212168.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1004200031 is about 31689.1153394979. The cubic root of 1004200031 is about 1001.3980548651.

Adding to 1004200031 its reverse (1300024001), we get a palindrome (2304224032).

The spelling of 1004200031 in words is "one billion, four million, two hundred thousand, thirty-one".