2151043245023 has 4 divisors (see below), whose sum is σ = 2151852214680. Its totient is φ = 2150234275368.

The previous prime is 2151043244969. The next prime is 2151043245101. The reversal of 2151043245023 is 3205423401512.

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 2151043245023 - 2¹⁶ = 2151043179487 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 (2151043245823) 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, 404480840 + ... + 404486157.

It is an arithmetic number, because the mean of its divisors is an integer number (537963053670).

Almost surely, 2^{2151043245023} is an apocalyptic number.

2151043245023 is a deficient number, since it is larger than the sum of its proper divisors (808969657).

2151043245023 is an equidigital number, since it uses as much as digits as its factorization.

2151043245023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808969656.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 2151043245023 its reverse (3205423401512), we get a palindrome (5356466646535).

The spelling of 2151043245023 in words is "two trillion, one hundred fifty-one billion, forty-three million, two hundred forty-five thousand, twenty-three".