11431442511400 has 48 divisors (see below), whose sum is σ = 26578800231840. Its totient is φ = 4572457195200.

The previous prime is 11431442511397. The next prime is 11431442511427. The reversal of 11431442511400 is 411524413411.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7108987 + ... + 8567413.

It is an arithmetic number, because the mean of its divisors is an integer number (553725004830).

Almost surely, 2^{11431442511400} is an apocalyptic number.

11431442511400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11431442511400 is an abundant number, since it is smaller than the sum of its proper divisors (15147357720440).

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

11431442511400 is a wasteful number, since it uses less digits than its factorization.

11431442511400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497634 (or 1497625 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 11431442511400 its reverse (411524413411), we get a palindrome (11842966924811).

The spelling of 11431442511400 in words is "eleven trillion, four hundred thirty-one billion, four hundred forty-two million, five hundred eleven thousand, four hundred".