11433555423 has 6 divisors (see below), whose sum is σ = 16515135624. Its totient is φ = 7622370276.

The previous prime is 11433555389. The next prime is 11433555443. The reversal of 11433555423 is 32455533411.

11433555423 is a `hidden beast` number, since 11 + 43 + 35 + 554 + 23 = 666.

It is not a de Polignac number, because 11433555423 - 2¹⁷ = 11433424351 is a prime.

It is a super-2 number, since 2×11433555423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11433555443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 635197515 + ... + 635197532.

It is an arithmetic number, because the mean of its divisors is an integer number (2752522604).

Almost surely, 2^11433555423 is an apocalyptic number.

11433555423 is a deficient number, since it is larger than the sum of its proper divisors (5081580201).

11433555423 is a wasteful number, since it uses less digits than its factorization.

11433555423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270395053 (or 1270395050 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The spelling of 11433555423 in words is "eleven billion, four hundred thirty-three million, five hundred fifty-five thousand, four hundred twenty-three".