1231003220213 has 8 divisors (see below), whose sum is σ = 1325725781856. Its totient is φ = 1136284945200.

The previous prime is 1231003220171. The next prime is 1231003220221. The reversal of 1231003220213 is 3120223001321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231003220213 - 2¹⁶ = 1231003154677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231003220233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462383 + ... + 1635788.

It is an arithmetic number, because the mean of its divisors is an integer number (165715722732).

Almost surely, 2^{1231003220213} is an apocalyptic number.

1231003220213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1231003220213 is a deficient number, since it is larger than the sum of its proper divisors (94722561643).

1231003220213 is a wasteful number, since it uses less digits than its factorization.

1231003220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143315.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1231003220213 its reverse (3120223001321), we get a palindrome (4351226221534).

The spelling of 1231003220213 in words is "one trillion, two hundred thirty-one billion, three million, two hundred twenty thousand, two hundred thirteen".