2156123332023 has 16 divisors (see below), whose sum is σ = 2896878944256. Its totient is φ = 1426392414720.

The previous prime is 2156123332021. The next prime is 2156123332037. The reversal of 2156123332023 is 3202333216512.

It is not a de Polignac number, because 2156123332023 - 2¹ = 2156123332021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156123332021) 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, 13401111 + ... + 13561047.

It is an arithmetic number, because the mean of its divisors is an integer number (181054934016).

Almost surely, 2^{2156123332023} is an apocalyptic number.

2156123332023 is a deficient number, since it is larger than the sum of its proper divisors (740755612233).

2156123332023 is a wasteful number, since it uses less digits than its factorization.

2156123332023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194374.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 2156123332023 its reverse (3202333216512), we get a palindrome (5358456548535).

The spelling of 2156123332023 in words is "two trillion, one hundred fifty-six billion, one hundred twenty-three million, three hundred thirty-two thousand, twenty-three".