1011011201 has 4 divisors (see below), whose sum is σ = 1011099972. Its totient is φ = 1010922432.

The previous prime is 1011011189. The next prime is 1011011231. The reversal of 1011011201 is 1021101101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 697012801 + 313998400 = 26401^2 + 17720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011011201 - 2¹⁸ = 1010749057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011011231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24260 + ... + 51093.

It is an arithmetic number, because the mean of its divisors is an integer number (252774993).

Almost surely, 2^1011011201 is an apocalyptic number.

It is an amenable number.

1011011201 is a deficient number, since it is larger than the sum of its proper divisors (88771).

1011011201 is an equidigital number, since it uses as much as digits as its factorization.

1011011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88770.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1011011201 is about 31796.4023279364. The cubic root of 1011011201 is about 1003.6570103063.

Adding to 1011011201 its reverse (1021101101), we get a palindrome (2032112302).

The spelling of 1011011201 in words is "one billion, eleven million, eleven thousand, two hundred one".