1211100140312 has 16 divisors (see below), whose sum is σ = 2390329224600. Its totient is φ = 573679013760.

The previous prime is 1211100140311. The next prime is 1211100140323. The reversal of 1211100140312 is 2130410011121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211100140311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3983881889 + ... + 3983882192.

Almost surely, 2^{1211100140312} is an apocalyptic number.

It is an amenable number.

1211100140312 is a deficient number, since it is larger than the sum of its proper divisors (1179229084288).

1211100140312 is a wasteful number, since it uses less digits than its factorization.

1211100140312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7967764106 (or 7967764102 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1211100140312 its reverse (2130410011121), we get a palindrome (3341510151433).

The spelling of 1211100140312 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred forty thousand, three hundred twelve".