20233025357021 has 2 divisors, whose sum is σ = 20233025357022. Its totient is φ = 20233025357020.

The previous prime is 20233025357003. The next prime is 20233025357047. The reversal of 20233025357021 is 12075352033202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12474494205625 + 7758531151396 = 3531925^2 + 2785414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20233025357021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20233025357221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116512678510 + 10116512678511.

It is an arithmetic number, because the mean of its divisors is an integer number (10116512678511).

Almost surely, 2^{20233025357021} is an apocalyptic number.

It is an amenable number.

20233025357021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233025357021 is an equidigital number, since it uses as much as digits as its factorization.

20233025357021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 20233025357021 in words is "twenty trillion, two hundred thirty-three billion, twenty-five million, three hundred fifty-seven thousand, twenty-one".