1331211013012 has 24 divisors (see below), whose sum is σ = 2335873338792. Its totient is φ = 663819264000.

The previous prime is 1331211013007. The next prime is 1331211013061. The reversal of 1331211013012 is 2103101121331.

It can be written as a sum of positive squares in 4 ways, for example, as 920670954256 + 410540058756 = 959516^2 + 640734^2 .

It is a super-2 number, since 2×1331211013012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8651098 + ... + 8803630.

It is an arithmetic number, because the mean of its divisors is an integer number (97328055783).

Almost surely, 2^{1331211013012} is an apocalyptic number.

It is an amenable number.

1331211013012 is a deficient number, since it is larger than the sum of its proper divisors (1004662325780).

1331211013012 is a wasteful number, since it uses less digits than its factorization.

1331211013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158379 (or 158377 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1331211013012 its reverse (2103101121331), we get a palindrome (3434312134343).

The spelling of 1331211013012 in words is "one trillion, three hundred thirty-one billion, two hundred eleven million, thirteen thousand, twelve".