11401212423 has 4 divisors (see below), whose sum is σ = 15201616568. Its totient is φ = 7600808280.

The previous prime is 11401212421. The next prime is 11401212437. The reversal of 11401212423 is 32421210411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32421210411 = 3 ⋅10807070137.

It is not a de Polignac number, because 11401212423 - 2¹ = 11401212421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11401212423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401212421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900202068 + ... + 1900202073.

It is an arithmetic number, because the mean of its divisors is an integer number (3800404142).

Almost surely, 2^11401212423 is an apocalyptic number.

11401212423 is a deficient number, since it is larger than the sum of its proper divisors (3800404145).

11401212423 is an equidigital number, since it uses as much as digits as its factorization.

11401212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800404144.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11401212423 its reverse (32421210411), we get a palindrome (43822422834).

The spelling of 11401212423 in words is "eleven billion, four hundred one million, two hundred twelve thousand, four hundred twenty-three".