1011311031212 has 12 divisors (see below), whose sum is σ = 1769998658736. Its totient is φ = 505597128720.

The previous prime is 1011311031167. The next prime is 1011311031257. The reversal of 1011311031212 is 2121301131101.

It is an interprime number because it is at equal distance from previous prime (1011311031167) and next prime (1011311031257).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14557739 + ... + 14627042.

It is an arithmetic number, because the mean of its divisors is an integer number (147499888228).

Almost surely, 2^{1011311031212} is an apocalyptic number.

It is an amenable number.

1011311031212 is a deficient number, since it is larger than the sum of its proper divisors (758687627524).

1011311031212 is a wasteful number, since it uses less digits than its factorization.

1011311031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29193448 (or 29193446 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1011311031212 its reverse (2121301131101), we get a palindrome (3132612162313).

The spelling of 1011311031212 in words is "one trillion, eleven billion, three hundred eleven million, thirty-one thousand, two hundred twelve".