1211320023023 has 16 divisors (see below), whose sum is σ = 1331976096000. Its totient is φ = 1092425630400.

The previous prime is 1211320023013. The next prime is 1211320023047. The reversal of 1211320023023 is 3203200231121.

It is a cyclic number.

It is not a de Polignac number, because 1211320023023 - 2²² = 1211315828719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211320022986 and 1211320023004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211320023013) 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, 4181411 + ... + 4461707.

It is an arithmetic number, because the mean of its divisors is an integer number (83248506000).

Almost surely, 2^{1211320023023} is an apocalyptic number.

1211320023023 is a deficient number, since it is larger than the sum of its proper divisors (120656072977).

1211320023023 is a wasteful number, since it uses less digits than its factorization.

1211320023023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283438.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1211320023023 its reverse (3203200231121), we get a palindrome (4414520254144).

The spelling of 1211320023023 in words is "one trillion, two hundred eleven billion, three hundred twenty million, twenty-three thousand, twenty-three".