1211303003012 has 6 divisors (see below), whose sum is σ = 2119780255278. Its totient is φ = 605651501504.

The previous prime is 1211303002999. The next prime is 1211303003107. The reversal of 1211303003012 is 2103003031121.

It can be written as a sum of positive squares in only one way, i.e., 824202516736 + 387100486276 = 907856^2 + 622174^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151412875373 + ... + 151412875380.

It is an arithmetic number, because the mean of its divisors is an integer number (353296709213).

Almost surely, 2^{1211303003012} is an apocalyptic number.

It is an amenable number.

1211303003012 is a deficient number, since it is larger than the sum of its proper divisors (908477252266).

1211303003012 is a wasteful number, since it uses less digits than its factorization.

1211303003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302825750757 (or 302825750755 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1211303003012 its reverse (2103003031121), we get a palindrome (3314306034133).

The spelling of 1211303003012 in words is "one trillion, two hundred eleven billion, three hundred three million, three thousand, twelve".