1211451567348 has 96 divisors (see below), whose sum is σ = 3224221056000. Its totient is φ = 350441245440.

The previous prime is 1211451567343. The next prime is 1211451567377. The reversal of 1211451567348 is 8437651541121.

It is a super-3 number, since 3×1211451567348³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1211451567297 and 1211451567306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211451567341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1115136 + ... + 1914792.

It is an arithmetic number, because the mean of its divisors is an integer number (33585636000).

Almost surely, 2^{1211451567348} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211451567348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612110528000).

1211451567348 is an abundant number, since it is smaller than the sum of its proper divisors (2012769488652).

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

1211451567348 is a wasteful number, since it uses less digits than its factorization.

1211451567348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800197 (or 800195 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The spelling of 1211451567348 in words is "one trillion, two hundred eleven billion, four hundred fifty-one million, five hundred sixty-seven thousand, three hundred forty-eight".