2154411215343 has 24 divisors (see below), whose sum is σ = 3248418376320. Its totient is φ = 1373324032080.

The previous prime is 2154411215267. The next prime is 2154411215357. The reversal of 2154411215343 is 3435121144512.

2154411215343 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 4 + 112 + 1 + 534 + 3 = 666.

It is not a de Polignac number, because 2154411215343 - 2⁸ = 2154411215087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154411215298 and 2154411215307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154411214343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1340173 + ... + 2470806.

It is an arithmetic number, because the mean of its divisors is an integer number (135350765680).

Almost surely, 2^{2154411215343} is an apocalyptic number.

2154411215343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2154411215343 is a deficient number, since it is larger than the sum of its proper divisors (1094007160977).

2154411215343 is a wasteful number, since it uses less digits than its factorization.

2154411215343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813739 (or 3813736 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

Adding to 2154411215343 its reverse (3435121144512), we get a palindrome (5589532359855).

The spelling of 2154411215343 in words is "two trillion, one hundred fifty-four billion, four hundred eleven million, two hundred fifteen thousand, three hundred forty-three".