2145253012323 has 16 divisors (see below), whose sum is σ = 3057497404416. Its totient is φ = 1334621879360.

The previous prime is 2145253012321. The next prime is 2145253012327. The reversal of 2145253012323 is 3232103525412.

It is a cyclic number.

It is not a de Polignac number, because 2145253012323 - 2¹ = 2145253012321 is a prime.

It is a super-2 number, since 2×2145253012323² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145253012321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379151115 + ... + 379156772.

It is an arithmetic number, because the mean of its divisors is an integer number (191093587776).

Almost surely, 2^{2145253012323} is an apocalyptic number.

2145253012323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2145253012323 is a deficient number, since it is larger than the sum of its proper divisors (912244392093).

2145253012323 is a wasteful number, since it uses less digits than its factorization.

2145253012323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758307954.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 2145253012323 its reverse (3232103525412), we get a palindrome (5377356537735).

The spelling of 2145253012323 in words is "two trillion, one hundred forty-five billion, two hundred fifty-three million, twelve thousand, three hundred twenty-three".