1012034020421 has 8 divisors (see below), whose sum is σ = 1013102082720. Its totient is φ = 1010966096272.

The previous prime is 1012034020409. The next prime is 1012034020429. The reversal of 1012034020421 is 1240204302101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012034020421 - 2²² = 1012029826117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012034020393 and 1012034020402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012034020429) 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, 21674126 + ... + 21720768.

It is an arithmetic number, because the mean of its divisors is an integer number (126637760340).

Almost surely, 2^{1012034020421} is an apocalyptic number.

It is an amenable number.

1012034020421 is a deficient number, since it is larger than the sum of its proper divisors (1068062299).

1012034020421 is a wasteful number, since it uses less digits than its factorization.

1012034020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69075.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1012034020421 its reverse (1240204302101), we get a palindrome (2252238322522).

The spelling of 1012034020421 in words is "one trillion, twelve billion, thirty-four million, twenty thousand, four hundred twenty-one".