402424011321111 has 20 divisors (see below), whose sum is σ = 647394373390072. Its totient is φ = 247645545427728.

The previous prime is 402424011321109. The next prime is 402424011321149. The reversal of 402424011321111 is 111123110424204.

402424011321111 is a `hidden beast` number, since 4 + 0 + 2 + 42 + 401 + 1 + 3 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 402424011321111 - 2¹ = 402424011321109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402424011321191) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 191084524741 + ... + 191084526846.

Almost surely, 2^{402424011321111} is an apocalyptic number.

402424011321111 is a deficient number, since it is larger than the sum of its proper divisors (244970362068961).

402424011321111 is a wasteful number, since it uses less digits than its factorization.

402424011321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382169051612 (or 382169051603 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 402424011321111 its reverse (111123110424204), we get a palindrome (513547121745315).

The spelling of 402424011321111 in words is "four hundred two trillion, four hundred twenty-four billion, eleven million, three hundred twenty-one thousand, one hundred eleven".