1231222321323 has 12 divisors (see below), whose sum is σ = 1786198324560. Its totient is φ = 817230535056.

The previous prime is 1231222321289. The next prime is 1231222321457. The reversal of 1231222321323 is 3231232221321.

1231222321323 is a `hidden beast` number, since 1 + 2 + 3 + 12 + 2 + 2 + 321 + 323 = 666.

It is not a de Polignac number, because 1231222321323 - 2¹³ = 1231222313131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231222321223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298693311 + ... + 298697432.

It is an arithmetic number, because the mean of its divisors is an integer number (148849860380).

Almost surely, 2^{1231222321323} is an apocalyptic number.

1231222321323 is a deficient number, since it is larger than the sum of its proper divisors (554976003237).

1231222321323 is a wasteful number, since it uses less digits than its factorization.

1231222321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597390978 (or 597390975 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 1231222321323 its reverse (3231232221321), we get a palindrome (4462454542644).

The spelling of 1231222321323 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-two million, three hundred twenty-one thousand, three hundred twenty-three".