1213441502311 has 8 divisors (see below), whose sum is σ = 1217893415904. Its totient is φ = 1208990101920.

The previous prime is 1213441502293. The next prime is 1213441502341. The reversal of 1213441502311 is 1132051443121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213441502311 - 2¹⁵ = 1213441469543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213441502311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213441502341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4981446 + ... + 5219356.

It is an arithmetic number, because the mean of its divisors is an integer number (152236676988).

Almost surely, 2^{1213441502311} is an apocalyptic number.

1213441502311 is a deficient number, since it is larger than the sum of its proper divisors (4451913593).

1213441502311 is a wasteful number, since it uses less digits than its factorization.

1213441502311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256601.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 1213441502311 its reverse (1132051443121), we get a palindrome (2345492945432).

The spelling of 1213441502311 in words is "one trillion, two hundred thirteen billion, four hundred forty-one million, five hundred two thousand, three hundred eleven".