21040401203302 has 16 divisors (see below), whose sum is σ = 34003938633840. Its totient is φ = 9706497764832.

The previous prime is 21040401203279. The next prime is 21040401203303. The reversal of 21040401203302 is 20330210404012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21040401203303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185635453 + ... + 185748760.

It is an arithmetic number, because the mean of its divisors is an integer number (2125246164615).

Almost surely, 2^{21040401203302} is an apocalyptic number.

21040401203302 is a deficient number, since it is larger than the sum of its proper divisors (12963537430538).

21040401203302 is a wasteful number, since it uses less digits than its factorization.

21040401203302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371386407.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21040401203302 its reverse (20330210404012), we get a palindrome (41370611607314).

The spelling of 21040401203302 in words is "twenty-one trillion, forty billion, four hundred one million, two hundred three thousand, three hundred two".