20210210021293 has 2 divisors, whose sum is σ = 20210210021294. Its totient is φ = 20210210021292.

The previous prime is 20210210021231. The next prime is 20210210021303. The reversal of 20210210021293 is 39212001201202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18452840888329 + 1757369132964 = 4295677^2 + 1325658^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210210021293 - 2²¹ = 20210207924141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210210021593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105105010646 + 10105105010647.

It is an arithmetic number, because the mean of its divisors is an integer number (10105105010647).

Almost surely, 2^{20210210021293} is an apocalyptic number.

It is an amenable number.

20210210021293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210210021293 is an equidigital number, since it uses as much as digits as its factorization.

20210210021293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 20210210021293 its reverse (39212001201202), we get a palindrome (59422211222495).

The spelling of 20210210021293 in words is "twenty trillion, two hundred ten billion, two hundred ten million, twenty-one thousand, two hundred ninety-three".