20271000353 has 2 divisors, whose sum is σ = 20271000354. Its totient is φ = 20271000352.

The previous prime is 20271000349. The next prime is 20271000371. The reversal of 20271000353 is 35300017202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10546673809 + 9724326544 = 102697^2 + 98612^2 .

It is a cyclic number.

It is not a de Polignac number, because 20271000353 - 2² = 20271000349 is a prime.

It is a super-2 number, since 2×20271000353² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20271000553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10135500176 + 10135500177.

It is an arithmetic number, because the mean of its divisors is an integer number (10135500177).

Almost surely, 2^20271000353 is an apocalyptic number.

It is an amenable number.

20271000353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20271000353 is an equidigital number, since it uses as much as digits as its factorization.

20271000353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

Adding to 20271000353 its reverse (35300017202), we get a palindrome (55571017555).

The spelling of 20271000353 in words is "twenty billion, two hundred seventy-one million, three hundred fifty-three", and thus it is an aban number.