2151143326223 has 4 divisors (see below), whose sum is σ = 2277681168960. Its totient is φ = 2024605483488.

The previous prime is 2151143326207. The next prime is 2151143326249. The reversal of 2151143326223 is 3226233411512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2151143326223 - 2⁴ = 2151143326207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151145326223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63268921343 + ... + 63268921376.

It is an arithmetic number, because the mean of its divisors is an integer number (569420292240).

Almost surely, 2^{2151143326223} is an apocalyptic number.

2151143326223 is a deficient number, since it is larger than the sum of its proper divisors (126537842737).

2151143326223 is a wasteful number, since it uses less digits than its factorization.

2151143326223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126537842736.

The product of its digits is 51840, while the sum is 35.

Adding to 2151143326223 its reverse (3226233411512), we get a palindrome (5377376737735).

The spelling of 2151143326223 in words is "two trillion, one hundred fifty-one billion, one hundred forty-three million, three hundred twenty-six thousand, two hundred twenty-three".