1101443421331 has 64 divisors (see below), whose sum is σ = 1264999680000. Its totient is φ = 950263142400.

The previous prime is 1101443421319. The next prime is 1101443421359. The reversal of 1101443421331 is 1331243441011.

It is not a de Polignac number, because 1101443421331 - 2¹⁹ = 1101442897043 is a prime.

It is a super-2 number, since 2×1101443421331² (a number of 25 digits) contains 22 as substring.

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 1101443421331.

It is not an unprimeable number, because it can be changed into a prime (1101443421311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1328640625 + ... + 1328641453.

It is an arithmetic number, because the mean of its divisors is an integer number (19765620000).

Almost surely, 2^{1101443421331} is an apocalyptic number.

1101443421331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101443421331 is a deficient number, since it is larger than the sum of its proper divisors (163556258669).

1101443421331 is a wasteful number, since it uses less digits than its factorization.

1101443421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 1101443421331 its reverse (1331243441011), we get a palindrome (2432686862342).

The spelling of 1101443421331 in words is "one trillion, one hundred one billion, four hundred forty-three million, four hundred twenty-one thousand, three hundred thirty-one".