1200423244431 has 16 divisors (see below), whose sum is σ = 1618377640704. Its totient is φ = 791419929024.

The previous prime is 1200423244367. The next prime is 1200423244469. The reversal of 1200423244431 is 1344423240021.

It is not a de Polignac number, because 1200423244431 - 2⁶ = 1200423244367 is a prime.

It is a super-2 number, since 2×1200423244431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200423244831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5444641 + ... + 5660826.

It is an arithmetic number, because the mean of its divisors is an integer number (101148602544).

Almost surely, 2^{1200423244431} is an apocalyptic number.

1200423244431 is a deficient number, since it is larger than the sum of its proper divisors (417954396273).

1200423244431 is a wasteful number, since it uses less digits than its factorization.

1200423244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105870.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1200423244431 its reverse (1344423240021), we get a palindrome (2544846484452).

The spelling of 1200423244431 in words is "one trillion, two hundred billion, four hundred twenty-three million, two hundred forty-four thousand, four hundred thirty-one".