1212231111003 has 48 divisors (see below), whose sum is σ = 1954477399680. Its totient is φ = 717801782400.

The previous prime is 1212231111001. The next prime is 1212231111029. The reversal of 1212231111003 is 3001111322121.

It is not a de Polignac number, because 1212231111003 - 2¹ = 1212231111001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212231111001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 315463 + ... + 1588703.

It is an arithmetic number, because the mean of its divisors is an integer number (40718279160).

Almost surely, 2^{1212231111003} is an apocalyptic number.

1212231111003 is a deficient number, since it is larger than the sum of its proper divisors (742246288677).

1212231111003 is a wasteful number, since it uses less digits than its factorization.

1212231111003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273480 (or 1273477 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1212231111003 its reverse (3001111322121), we get a palindrome (4213342433124).

The spelling of 1212231111003 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, one hundred eleven thousand, three".