11311240420312 has 32 divisors (see below), whose sum is σ = 24530400921600. Its totient is φ = 4789268747424.

The previous prime is 11311240420301. The next prime is 11311240420343. The reversal of 11311240420312 is 21302404211311.

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, 1216781112 + ... + 1216790407.

It is an arithmetic number, because the mean of its divisors is an integer number (766575028800).

Almost surely, 2^{11311240420312} is an apocalyptic number.

It is an amenable number.

11311240420312 is an abundant number, since it is smaller than the sum of its proper divisors (13219160501288).

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

11311240420312 is a wasteful number, since it uses less digits than its factorization.

11311240420312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433571615 (or 2433571611 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 11311240420312 its reverse (21302404211311), we get a palindrome (32613644631623).

The spelling of 11311240420312 in words is "eleven trillion, three hundred eleven billion, two hundred forty million, four hundred twenty thousand, three hundred twelve".