1023420000321 has 6 divisors (see below), whose sum is σ = 1478273333810. Its totient is φ = 682280000208.

The previous prime is 1023420000311. The next prime is 1023420000329. The reversal of 1023420000321 is 1230000243201.

1023420000321 is a `hidden beast` number, since 1 + 0 + 2 + 342 + 0 + 0 + 0 + 0 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 605768012721 + 417651987600 = 778311^2 + 646260^2 .

It is not a de Polignac number, because 1023420000321 - 2⁶ = 1023420000257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023420000294 and 1023420000303.

It is not an unprimeable number, because it can be changed into a prime (1023420000329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56856666676 + ... + 56856666693.

Almost surely, 2^{1023420000321} is an apocalyptic number.

It is an amenable number.

1023420000321 is a deficient number, since it is larger than the sum of its proper divisors (454853333489).

1023420000321 is a wasteful number, since it uses less digits than its factorization.

1023420000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113713333375 (or 113713333372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1023420000321 its reverse (1230000243201), we get a palindrome (2253420243522).

The spelling of 1023420000321 in words is "one trillion, twenty-three billion, four hundred twenty million, three hundred twenty-one", and thus it is an aban number.