1002444223231 has 16 divisors (see below), whose sum is σ = 1110120181920. Its totient is φ = 897560939520.

The previous prime is 1002444223177. The next prime is 1002444223259. The reversal of 1002444223231 is 1323224442001.

It is a cyclic number.

It is not a de Polignac number, because 1002444223231 - 2¹⁷ = 1002444092159 is a prime.

It is a super-2 number, since 2×1002444223231² (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 1002444223231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002444223031) 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, 311050 + ... + 1449703.

It is an arithmetic number, because the mean of its divisors is an integer number (69382511370).

Almost surely, 2^{1002444223231} is an apocalyptic number.

1002444223231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002444223231 is a deficient number, since it is larger than the sum of its proper divisors (107675958689).

1002444223231 is a wasteful number, since it uses less digits than its factorization.

1002444223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761546.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1002444223231 its reverse (1323224442001), we get a palindrome (2325668665232).

The spelling of 1002444223231 in words is "one trillion, two billion, four hundred forty-four million, two hundred twenty-three thousand, two hundred thirty-one".