20311101301 has 2 divisors, whose sum is σ = 20311101302. Its totient is φ = 20311101300.

The previous prime is 20311101281. The next prime is 20311101323. The reversal of 20311101301 is 10310111302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15007475025 + 5303626276 = 122505^2 + 72826^2 .

It is a cyclic number.

It is not a de Polignac number, because 20311101301 - 2¹¹ = 20311099253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20311104301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155550650 + 10155550651.

It is an arithmetic number, because the mean of its divisors is an integer number (10155550651).

Almost surely, 2^20311101301 is an apocalyptic number.

It is an amenable number.

20311101301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311101301 is an equidigital number, since it uses as much as digits as its factorization.

20311101301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 20311101301 its reverse (10310111302), we get a palindrome (30621212603).

The spelling of 20311101301 in words is "twenty billion, three hundred eleven million, one hundred one thousand, three hundred one".