1200534444431 has 4 divisors (see below), whose sum is σ = 1372039365072. Its totient is φ = 1029029523792.

The previous prime is 1200534444419. The next prime is 1200534444437. The reversal of 1200534444431 is 1344444350021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200534444431 - 2¹⁴ = 1200534428047 is a prime.

It is a super-2 number, since 2×1200534444431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200534444391 and 1200534444400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200534444437) 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 3 ways as a sum of consecutive naturals, for example, 85752460310 + ... + 85752460323.

It is an arithmetic number, because the mean of its divisors is an integer number (343009841268).

Almost surely, 2^{1200534444431} is an apocalyptic number.

1200534444431 is a deficient number, since it is larger than the sum of its proper divisors (171504920641).

1200534444431 is an equidigital number, since it uses as much as digits as its factorization.

1200534444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171504920640.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 1200534444431 its reverse (1344444350021), we get a palindrome (2544978794452).

The spelling of 1200534444431 in words is "one trillion, two hundred billion, five hundred thirty-four million, four hundred forty-four thousand, four hundred thirty-one".