421000403033 has 16 divisors (see below), whose sum is σ = 509874341760. Its totient is φ = 339916214400.

The previous prime is 421000402973. The next prime is 421000403041. The reversal of 421000403033 is 330304000124.

It is not a de Polignac number, because 421000403033 - 2¹⁸ = 421000140889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 421000402996 and 421000403014.

It is not an unprimeable number, because it can be changed into a prime (421000403093) 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, 25283063 + ... + 25299708.

It is an arithmetic number, because the mean of its divisors is an integer number (31867146360).

Almost surely, 2^421000403033 is an apocalyptic number.

It is an amenable number.

421000403033 is a deficient number, since it is larger than the sum of its proper divisors (88873938727).

421000403033 is a wasteful number, since it uses less digits than its factorization.

421000403033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50582848.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 421000403033 its reverse (330304000124), we get a palindrome (751304403157).

The spelling of 421000403033 in words is "four hundred twenty-one billion, four hundred three thousand, thirty-three".