1211213031302 has 16 divisors (see below), whose sum is σ = 1867260935232. Its totient is φ = 588916807080.

The previous prime is 1211213031293. The next prime is 1211213031337. The reversal of 1211213031302 is 2031303121121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31002224 + ... + 31041267.

It is an arithmetic number, because the mean of its divisors is an integer number (116703808452).

Almost surely, 2^{1211213031302} is an apocalyptic number.

1211213031302 is a deficient number, since it is larger than the sum of its proper divisors (656047903930).

1211213031302 is a wasteful number, since it uses less digits than its factorization.

1211213031302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62043763.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1211213031302 its reverse (2031303121121), we get a palindrome (3242516152423).

The spelling of 1211213031302 in words is "one trillion, two hundred eleven billion, two hundred thirteen million, thirty-one thousand, three hundred two".