30203020311253 has 2 divisors, whose sum is σ = 30203020311254. Its totient is φ = 30203020311252.

The previous prime is 30203020311239. The next prime is 30203020311271. The reversal of 30203020311253 is 35211302030203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26983640598084 + 3219379713169 = 5194578^2 + 1794263^2 .

It is a cyclic number.

It is not a de Polignac number, because 30203020311253 - 2¹³ = 30203020303061 is a prime.

It is a super-2 number, since 2×30203020311253² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30203020311553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101510155626 + 15101510155627.

It is an arithmetic number, because the mean of its divisors is an integer number (15101510155627).

Almost surely, 2^{30203020311253} is an apocalyptic number.

It is an amenable number.

30203020311253 is a deficient number, since it is larger than the sum of its proper divisors (1).

30203020311253 is an equidigital number, since it uses as much as digits as its factorization.

30203020311253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 30203020311253 its reverse (35211302030203), we get a palindrome (65414322341456).

The spelling of 30203020311253 in words is "thirty trillion, two hundred three billion, twenty million, three hundred eleven thousand, two hundred fifty-three".