1213311340050 has 24 divisors (see below), whose sum is σ = 3009012123696. Its totient is φ = 323549690640.

The previous prime is 1213311340027. The next prime is 1213311340051. The reversal of 1213311340050 is 500431133121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213311340050.

It is not an unprimeable number, because it can be changed into a prime (1213311340051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4044370984 + ... + 4044371283.

It is an arithmetic number, because the mean of its divisors is an integer number (125375505154).

Almost surely, 2^{1213311340050} is an apocalyptic number.

1213311340050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213311340050 is an abundant number, since it is smaller than the sum of its proper divisors (1795700783646).

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

1213311340050 is a wasteful number, since it uses less digits than its factorization.

1213311340050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088742282 (or 8088742277 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 1213311340050 its reverse (500431133121), we get a palindrome (1713742473171).

The spelling of 1213311340050 in words is "one trillion, two hundred thirteen billion, three hundred eleven million, three hundred forty thousand, fifty".