11401431140 has 48 divisors (see below), whose sum is σ = 27656100864. Its totient is φ = 3902092800.

The previous prime is 11401431133. The next prime is 11401431169. The reversal of 11401431140 is 4113410411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1520516 + ... + 1527995.

It is an arithmetic number, because the mean of its divisors is an integer number (576168768).

Almost surely, 2^11401431140 is an apocalyptic number.

11401431140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11401431140 is an abundant number, since it is smaller than the sum of its proper divisors (16254669724).

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

11401431140 is a wasteful number, since it uses less digits than its factorization.

11401431140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048548 (or 3048546 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11401431140 its reverse (4113410411), we get a palindrome (15514841551).

The spelling of 11401431140 in words is "eleven billion, four hundred one million, four hundred thirty-one thousand, one hundred forty".