1200023211043 has 2 divisors, whose sum is σ = 1200023211044. Its totient is φ = 1200023211042.

The previous prime is 1200023211041. The next prime is 1200023211047. The reversal of 1200023211043 is 3401123200021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200023211043 - 2¹ = 1200023211041 is a prime.

Together with 1200023211041, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1200023211043.

It is not a weakly prime, because it can be changed into another prime (1200023211041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600011605521 + 600011605522.

It is an arithmetic number, because the mean of its divisors is an integer number (600011605522).

Almost surely, 2^{1200023211043} is an apocalyptic number.

1200023211043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200023211043 is an equidigital number, since it uses as much as digits as its factorization.

1200023211043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1200023211043 its reverse (3401123200021), we get a palindrome (4601146411064).

The spelling of 1200023211043 in words is "one trillion, two hundred billion, twenty-three million, two hundred eleven thousand, forty-three".