1244223011331 has 16 divisors (see below), whose sum is σ = 1940308790400. Its totient is φ = 785825059464.

The previous prime is 1244223011329. The next prime is 1244223011347. The reversal of 1244223011331 is 1331103224421.

1244223011331 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 22 + 301 + 1 + 331 = 666.

It is not a de Polignac number, because 1244223011331 - 2¹ = 1244223011329 is a prime.

It is a super-3 number, since 3×1244223011331³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1244223011295 and 1244223011304.

It is not an unprimeable number, because it can be changed into a prime (1244223011321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212692481 + ... + 1212693506.

It is an arithmetic number, because the mean of its divisors is an integer number (121269299400).

Almost surely, 2^{1244223011331} is an apocalyptic number.

1244223011331 is a deficient number, since it is larger than the sum of its proper divisors (696085779069).

1244223011331 is a wasteful number, since it uses less digits than its factorization.

1244223011331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425386015 (or 2425386009 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1244223011331 its reverse (1331103224421), we get a palindrome (2575326235752).

The spelling of 1244223011331 in words is "one trillion, two hundred forty-four billion, two hundred twenty-three million, eleven thousand, three hundred thirty-one".