11021400423 has 24 divisors (see below), whose sum is σ = 17661421440. Its totient is φ = 6566418960.

The previous prime is 11021400409. The next prime is 11021400437. The reversal of 11021400423 is 32400412011.

11021400423 is a `hidden beast` number, since 1 + 102 + 140 + 0 + 423 = 666.

It is an interprime number because it is at equal distance from previous prime (11021400409) and next prime (11021400437).

It is not a de Polignac number, because 11021400423 - 2⁹ = 11021399911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021400396 and 11021400405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021400443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 937611 + ... + 949292.

It is an arithmetic number, because the mean of its divisors is an integer number (735892560).

Almost surely, 2^11021400423 is an apocalyptic number.

11021400423 is a deficient number, since it is larger than the sum of its proper divisors (6640021017).

11021400423 is a wasteful number, since it uses less digits than its factorization.

11021400423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886979 (or 1886976 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11021400423 its reverse (32400412011), we get a palindrome (43421812434).

The spelling of 11021400423 in words is "eleven billion, twenty-one million, four hundred thousand, four hundred twenty-three".