1223032121311 has 16 divisors (see below), whose sum is σ = 1642113059328. Its totient is φ = 879703423200.

The previous prime is 1223032121261. The next prime is 1223032121411. The reversal of 1223032121311 is 1131212303221.

It is not a de Polignac number, because 1223032121311 - 2¹⁵ = 1223032088543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223032121011) 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, 610904155 + ... + 610906156.

It is an arithmetic number, because the mean of its divisors is an integer number (102632066208).

Almost surely, 2^{1223032121311} is an apocalyptic number.

1223032121311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1223032121311 is a deficient number, since it is larger than the sum of its proper divisors (419080938017).

1223032121311 is a wasteful number, since it uses less digits than its factorization.

1223032121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221810342.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1223032121311 its reverse (1131212303221), we get a palindrome (2354244424532).

The spelling of 1223032121311 in words is "one trillion, two hundred twenty-three billion, thirty-two million, one hundred twenty-one thousand, three hundred eleven".