403220041021 has 12 divisors (see below), whose sum is σ = 469809677280. Its totient is φ = 345058804440.

The previous prime is 403220041009. The next prime is 403220041033. The reversal of 403220041021 is 120140022304.

It is an interprime number because it is at equal distance from previous prime (403220041009) and next prime (403220041033).

It is not a de Polignac number, because 403220041021 - 2¹⁵ = 403220008253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 403220041021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403220041001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6616665 + ... + 6677326.

It is an arithmetic number, because the mean of its divisors is an integer number (39150806440).

Almost surely, 2^403220041021 is an apocalyptic number.

It is an amenable number.

403220041021 is a deficient number, since it is larger than the sum of its proper divisors (66589636259).

403220041021 is a wasteful number, since it uses less digits than its factorization.

403220041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13294624 (or 13294617 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 403220041021 its reverse (120140022304), we get a palindrome (523360063325).

The spelling of 403220041021 in words is "four hundred three billion, two hundred twenty million, forty-one thousand, twenty-one".