1201310311012 has 12 divisors (see below), whose sum is σ = 2402620622080. Its totient is φ = 514847276136.

The previous prime is 1201310310983. The next prime is 1201310311013. The reversal of 1201310311012 is 2101130131021.

It is a happy number.

1201310311012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1201310311013) 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, 21451969812 + ... + 21451969867.

Almost surely, 2^{1201310311012} is an apocalyptic number.

It is an amenable number.

1201310311012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201310311012 is a wasteful number, since it uses less digits than its factorization.

1201310311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42903939690 (or 42903939688 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1201310311012 its reverse (2101130131021), we get a palindrome (3302440442033).

The spelling of 1201310311012 in words is "one trillion, two hundred one billion, three hundred ten million, three hundred eleven thousand, twelve".