1012046421 has 4 divisors (see below), whose sum is σ = 1349395232. Its totient is φ = 674697612.

The previous prime is 1012046407. The next prime is 1012046443. The reversal of 1012046421 is 1246402101.

It is a happy number.

1012046421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1012046421 - 2⁵ = 1012046389 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 (1012046401) 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, 168674401 + ... + 168674406.

It is an arithmetic number, because the mean of its divisors is an integer number (337348808).

Almost surely, 2^1012046421 is an apocalyptic number.

It is an amenable number.

1012046421 is a deficient number, since it is larger than the sum of its proper divisors (337348811).

1012046421 is an equidigital number, since it uses as much as digits as its factorization.

1012046421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337348810.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1012046421 is about 31812.6770486232. The cubic root of 1012046421 is about 1003.9994566882. Note that the first 3 decimals are identical.

Adding to 1012046421 its reverse (1246402101), we get a palindrome (2258448522).

The spelling of 1012046421 in words is "one billion, twelve million, forty-six thousand, four hundred twenty-one".