11423422131440 has 80 divisors (see below), whose sum is σ = 30498897409920. Its totient is φ = 3935341589760.

The previous prime is 11423422131403. The next prime is 11423422131479. The reversal of 11423422131440 is 4413122432411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 11423422131397 and 11423422131406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341592794 + ... + 341626233.

It is an arithmetic number, because the mean of its divisors is an integer number (381236217624).

Almost surely, 2^{11423422131440} is an apocalyptic number.

11423422131440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11423422131440 is an abundant number, since it is smaller than the sum of its proper divisors (19075475278480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11423422131440 is a wasteful number, since it uses less digits than its factorization.

11423422131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683219070 (or 683219064 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 11423422131440 its reverse (4413122432411), we get a palindrome (15836544563851).

The spelling of 11423422131440 in words is "eleven trillion, four hundred twenty-three billion, four hundred twenty-two million, one hundred thirty-one thousand, four hundred forty".