1213100232303 has 16 divisors (see below), whose sum is σ = 1688329956096. Its totient is φ = 773324428800.

The previous prime is 1213100232299. The next prime is 1213100232307. The reversal of 1213100232303 is 3032320013121.

It is an interprime number because it is at equal distance from previous prime (1213100232299) and next prime (1213100232307).

It is not a de Polignac number, because 1213100232303 - 2² = 1213100232299 is a prime.

It is a super-2 number, since 2×1213100232303² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213100232303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213100232307) 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, 2585773 + ... + 3018678.

It is an arithmetic number, because the mean of its divisors is an integer number (105520622256).

Almost surely, 2^{1213100232303} is an apocalyptic number.

1213100232303 is a deficient number, since it is larger than the sum of its proper divisors (475229723793).

1213100232303 is a wasteful number, since it uses less digits than its factorization.

1213100232303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607614.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1213100232303 its reverse (3032320013121), we get a palindrome (4245420245424).

The spelling of 1213100232303 in words is "one trillion, two hundred thirteen billion, one hundred million, two hundred thirty-two thousand, three hundred three".