1231033222013 has 4 divisors (see below), whose sum is σ = 1406895110880. Its totient is φ = 1055171333148.

The previous prime is 1231033221991. The next prime is 1231033222037. The reversal of 1231033222013 is 3102223301321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1231033222013 - 2⁸ = 1231033221757 is a prime.

It is a super-3 number, since 3×1231033222013³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231033222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231033222063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87930944423 + ... + 87930944436.

It is an arithmetic number, because the mean of its divisors is an integer number (351723777720).

Almost surely, 2^{1231033222013} is an apocalyptic number.

It is an amenable number.

1231033222013 is a deficient number, since it is larger than the sum of its proper divisors (175861888867).

1231033222013 is an equidigital number, since it uses as much as digits as its factorization.

1231033222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175861888866.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1231033222013 its reverse (3102223301321), we get a palindrome (4333256523334).

The spelling of 1231033222013 in words is "one trillion, two hundred thirty-one billion, thirty-three million, two hundred twenty-two thousand, thirteen".