1303211233123 has 16 divisors (see below), whose sum is σ = 1340908390656. Its totient is φ = 1266022517760.

The previous prime is 1303211233099. The next prime is 1303211233133. The reversal of 1303211233123 is 3213321123031.

It is a cyclic number.

It is not a de Polignac number, because 1303211233123 - 2¹⁷ = 1303211102051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303211233133) 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, 5825311 + ... + 6044887.

It is an arithmetic number, because the mean of its divisors is an integer number (83806774416).

Almost surely, 2^{1303211233123} is an apocalyptic number.

1303211233123 is a deficient number, since it is larger than the sum of its proper divisors (37697157533).

1303211233123 is a wasteful number, since it uses less digits than its factorization.

1303211233123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220734.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1303211233123 its reverse (3213321123031), we get a palindrome (4516532356154).

The spelling of 1303211233123 in words is "one trillion, three hundred three billion, two hundred eleven million, two hundred thirty-three thousand, one hundred twenty-three".