20210212093 has 2 divisors, whose sum is σ = 20210212094. Its totient is φ = 20210212092.

The previous prime is 20210212019. The next prime is 20210212097. The reversal of 20210212093 is 39021201202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16658290489 + 3551921604 = 129067^2 + 59598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210212093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210212097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105106046 + 10105106047.

It is an arithmetic number, because the mean of its divisors is an integer number (10105106047).

Almost surely, 2^20210212093 is an apocalyptic number.

It is an amenable number.

20210212093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210212093 is an equidigital number, since it uses as much as digits as its factorization.

20210212093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20210212093 its reverse (39021201202), we get a palindrome (59231413295).

The spelling of 20210212093 in words is "twenty billion, two hundred ten million, two hundred twelve thousand, ninety-three".