11402021223423 has 16 divisors (see below), whose sum is σ = 16892024285440. Its totient is φ = 7601284036152.

The previous prime is 11402021223419. The next prime is 11402021223449. The reversal of 11402021223423 is 32432212020411.

11402021223423 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 2 + 0 + 212 + 23 + 423 = 666.

It is not a de Polignac number, because 11402021223423 - 2² = 11402021223419 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 (11402021225423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652640 + ... + 5053242.

It is an arithmetic number, because the mean of its divisors is an integer number (1055751517840).

Almost surely, 2^{11402021223423} is an apocalyptic number.

11402021223423 is a deficient number, since it is larger than the sum of its proper divisors (5490003062017).

11402021223423 is a wasteful number, since it uses less digits than its factorization.

11402021223423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524795 (or 3524789 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 11402021223423 its reverse (32432212020411), we get a palindrome (43834233243834).

The spelling of 11402021223423 in words is "eleven trillion, four hundred two billion, twenty-one million, two hundred twenty-three thousand, four hundred twenty-three".