1221231102303 has 8 divisors (see below), whose sum is σ = 1643246743600. Its totient is φ = 806684764608.

The previous prime is 1221231102283. The next prime is 1221231102349. The reversal of 1221231102303 is 3032011321221.

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

It is not a de Polignac number, because 1221231102303 - 2⁶ = 1221231102239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1221231102303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221231103303) 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, 1867325518 + ... + 1867326171.

It is an arithmetic number, because the mean of its divisors is an integer number (205405842950).

Almost surely, 2^{1221231102303} is an apocalyptic number.

1221231102303 is a deficient number, since it is larger than the sum of its proper divisors (422015641297).

1221231102303 is a wasteful number, since it uses less digits than its factorization.

1221231102303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734651801.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1221231102303 its reverse (3032011321221), we get a palindrome (4253242423524).

The spelling of 1221231102303 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-one million, one hundred two thousand, three hundred three".