20102030393 has 2 divisors, whose sum is σ = 20102030394. Its totient is φ = 20102030392.

The previous prime is 20102030317. The next prime is 20102030423. The reversal of 20102030393 is 39303020102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19659685369 + 442345024 = 140213^2 + 21032^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102030393 - 2¹² = 20102026297 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102030093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051015196 + 10051015197.

It is an arithmetic number, because the mean of its divisors is an integer number (10051015197).

Almost surely, 2^20102030393 is an apocalyptic number.

It is an amenable number.

20102030393 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102030393 is an equidigital number, since it uses as much as digits as its factorization.

20102030393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20102030393 its reverse (39303020102), we get a palindrome (59405050495).

The spelling of 20102030393 in words is "twenty billion, one hundred two million, thirty thousand, three hundred ninety-three".