2021125572523 has 2 divisors, whose sum is σ = 2021125572524. Its totient is φ = 2021125572522.

The previous prime is 2021125572491. The next prime is 2021125572577. The reversal of 2021125572523 is 3252755211202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021125572523 - 2⁵ = 2021125572491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021125672523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010562786261 + 1010562786262.

It is an arithmetic number, because the mean of its divisors is an integer number (1010562786262).

Almost surely, 2^{2021125572523} is an apocalyptic number.

2021125572523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021125572523 is an equidigital number, since it uses as much as digits as its factorization.

2021125572523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 2021125572523 in words is "two trillion, twenty-one billion, one hundred twenty-five million, five hundred seventy-two thousand, five hundred twenty-three".