1054021000421 has 16 divisors (see below), whose sum is σ = 1084145860800. Its totient is φ = 1024309469568.

The previous prime is 1054021000397. The next prime is 1054021000463. The reversal of 1054021000421 is 1240001204501.

It is a happy number.

1054021000421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1054021000421 - 2³⁴ = 1036841131237 is a prime.

It is a super-2 number, since 2×1054021000421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1054021000393 and 1054021000402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054021000471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30790511 + ... + 30824723.

It is an arithmetic number, because the mean of its divisors is an integer number (67759116300).

Almost surely, 2^{1054021000421} is an apocalyptic number.

It is an amenable number.

1054021000421 is a deficient number, since it is larger than the sum of its proper divisors (30124860379).

1054021000421 is an equidigital number, since it uses as much as digits as its factorization.

1054021000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40228.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 1054021000421 its reverse (1240001204501), we get a palindrome (2294022204922).

The spelling of 1054021000421 in words is "one trillion, fifty-four billion, twenty-one million, four hundred twenty-one", and thus it is an aban number.