1004120231 has 4 divisors (see below), whose sum is σ = 1004247552. Its totient is φ = 1003992912.

The previous prime is 1004120213. The next prime is 1004120237. The reversal of 1004120231 is 1320214001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320214001 = 761 ⋅1734841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004120231 is a prime.

It is a super-2 number, since 2×1004120231² = 2016514876606986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004120237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50990 + ... + 67883.

It is an arithmetic number, because the mean of its divisors is an integer number (251061888).

Almost surely, 2^1004120231 is an apocalyptic number.

1004120231 is a deficient number, since it is larger than the sum of its proper divisors (127321).

1004120231 is an equidigital number, since it uses as much as digits as its factorization.

1004120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127320.

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

The square root of 1004120231 is about 31687.8562070709. The cubic root of 1004120231 is about 1001.3715283832.

Adding to 1004120231 its reverse (1320214001), we get a palindrome (2324334232).

The spelling of 1004120231 in words is "one billion, four million, one hundred twenty thousand, two hundred thirty-one".