11431400211420 has 48 divisors (see below), whose sum is σ = 36580480677888. Its totient is φ = 2612891476800.

The previous prime is 11431400211419. The next prime is 11431400211541. The reversal of 11431400211420 is 2411200413411.

It is a happy number.

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, 13608809356 + ... + 13608810195.

It is an arithmetic number, because the mean of its divisors is an integer number (762093347456).

Almost surely, 2^{11431400211420} is an apocalyptic number.

11431400211420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11431400211420 is an abundant number, since it is smaller than the sum of its proper divisors (25149080466468).

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

11431400211420 is a wasteful number, since it uses less digits than its factorization.

11431400211420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27217619570 (or 27217619568 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 11431400211420 its reverse (2411200413411), we get a palindrome (13842600624831).

The spelling of 11431400211420 in words is "eleven trillion, four hundred thirty-one billion, four hundred million, two hundred eleven thousand, four hundred twenty".