11421403404205 has 16 divisors (see below), whose sum is σ = 13790002532544. Its totient is φ = 9080912332800.

The previous prime is 11421403404199. The next prime is 11421403404211. The reversal of 11421403404205 is 50240430412411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11421403404199) and next prime (11421403404211).

It is not a de Polignac number, because 11421403404205 - 2⁹ = 11421403403693 is a prime.

It is a super-2 number, since 2×11421403404205² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85998462 + ... + 86131168.

It is an arithmetic number, because the mean of its divisors is an integer number (861875158284).

Almost surely, 2^{11421403404205} is an apocalyptic number.

It is an amenable number.

11421403404205 is a deficient number, since it is larger than the sum of its proper divisors (2368599128339).

11421403404205 is a wasteful number, since it uses less digits than its factorization.

11421403404205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238476.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 11421403404205 its reverse (50240430412411), we get a palindrome (61661833816616).

The spelling of 11421403404205 in words is "eleven trillion, four hundred twenty-one billion, four hundred three million, four hundred four thousand, two hundred five".