2153123213063 has 4 divisors (see below), whose sum is σ = 2153615584968. Its totient is φ = 2152630841160.

The previous prime is 2153123213051. The next prime is 2153123213093. The reversal of 2153123213063 is 3603123213512.

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 2153123213063 - 2²⁴ = 2153106435847 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 (2153123213093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246179393 + ... + 246188138.

It is an arithmetic number, because the mean of its divisors is an integer number (538403896242).

Almost surely, 2^{2153123213063} is an apocalyptic number.

2153123213063 is a deficient number, since it is larger than the sum of its proper divisors (492371905).

2153123213063 is an equidigital number, since it uses as much as digits as its factorization.

2153123213063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492371904.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 2153123213063 its reverse (3603123213512), we get a palindrome (5756246426575).

The spelling of 2153123213063 in words is "two trillion, one hundred fifty-three billion, one hundred twenty-three million, two hundred thirteen thousand, sixty-three".