1040320030421 has 24 divisors (see below), whose sum is σ = 1227535308576. Its totient is φ = 878983879200.

The previous prime is 1040320030403. The next prime is 1040320030457. The reversal of 1040320030421 is 1240300230401.

It is not a de Polignac number, because 1040320030421 - 2¹⁸ = 1040319768277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040320030393 and 1040320030402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040320033421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 660410 + ... + 1586436.

It is an arithmetic number, because the mean of its divisors is an integer number (51147304524).

Almost surely, 2^{1040320030421} is an apocalyptic number.

It is an amenable number.

1040320030421 is a deficient number, since it is larger than the sum of its proper divisors (187215278155).

1040320030421 is a wasteful number, since it uses less digits than its factorization.

1040320030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926369 (or 926362 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1040320030421 its reverse (1240300230401), we get a palindrome (2280620260822).

The spelling of 1040320030421 in words is "one trillion, forty billion, three hundred twenty million, thirty thousand, four hundred twenty-one".