1011311201 has 2 divisors, whose sum is σ = 1011311202. Its totient is φ = 1011311200.

The previous prime is 1011311143. The next prime is 1011311221. The reversal of 1011311201 is 1021131101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 657871201 + 353440000 = 25649^2 + 18800^2 .

It is an emirp because it is prime and its reverse (1021131101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011311201 - 2¹⁰ = 1011310177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011311221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505655600 + 505655601.

It is an arithmetic number, because the mean of its divisors is an integer number (505655601).

Almost surely, 2^1011311201 is an apocalyptic number.

It is an amenable number.

1011311201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011311201 is an equidigital number, since it uses as much as digits as its factorization.

1011311201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1011311201 is about 31801.1194928732. The cubic root of 1011311201 is about 1003.7562730794.

Adding to 1011311201 its reverse (1021131101), we get a palindrome (2032442302).

The spelling of 1011311201 in words is "one billion, eleven million, three hundred eleven thousand, two hundred one".