1231124211321 has 16 divisors (see below), whose sum is σ = 1686035562048. Its totient is φ = 798485688000.

The previous prime is 1231124211277. The next prime is 1231124211391.

1231124211321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1231124211321 - 2¹⁰ = 1231124210297 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1231124211291 and 1231124211300.

It is not an unprimeable number, because it can be changed into a prime (1231124211391) 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, 538906 + ... + 1659116.

It is an arithmetic number, because the mean of its divisors is an integer number (105377222628).

Almost surely, 2^{1231124211321} is an apocalyptic number.

It is an amenable number.

1231124211321 is a deficient number, since it is larger than the sum of its proper divisors (454911350727).

1231124211321 is a wasteful number, since it uses less digits than its factorization.

1231124211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130152.

The product of its digits is 576, while the sum is 24.

The spelling of 1231124211321 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-four million, two hundred eleven thousand, three hundred twenty-one".