1012404031 has 4 divisors (see below), whose sum is σ = 1015702072. Its totient is φ = 1009105992.

The previous prime is 1012404023. The next prime is 1012404047. The reversal of 1012404031 is 1304042101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012404031 - 2³ = 1012404023 is a prime.

It is a super-2 number, since 2×1012404031² = 2049923843970097922, 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 = 1012403996 and 1012404014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012404091) 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, 1648560 + ... + 1649173.

It is an arithmetic number, because the mean of its divisors is an integer number (253925518).

Almost surely, 2^1012404031 is an apocalyptic number.

1012404031 is a deficient number, since it is larger than the sum of its proper divisors (3298041).

1012404031 is an equidigital number, since it uses as much as digits as its factorization.

1012404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298040.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1012404031 is about 31818.2971103106. The cubic root of 1012404031 is about 1004.1176982883.

Adding to 1012404031 its reverse (1304042101), we get a palindrome (2316446132).

The spelling of 1012404031 in words is "one billion, twelve million, four hundred four thousand, thirty-one".