1011001201 has 4 divisors (see below), whose sum is σ = 1155429952. Its totient is φ = 866572452.

The previous prime is 1011001183. The next prime is 1011001217. The reversal of 1011001201 is 1021001101.

1011001201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1021001101 = 1153 ⋅885517.

It is a cyclic number.

It is not a de Polignac number, because 1011001201 - 2⁷ = 1011001073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 144428743 = 1011001201 / (1 + 0 + 1 + 1 + 0 + 0 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011001291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72214365 + ... + 72214378.

It is an arithmetic number, because the mean of its divisors is an integer number (288857488).

Almost surely, 2^1011001201 is an apocalyptic number.

It is an amenable number.

1011001201 is a deficient number, since it is larger than the sum of its proper divisors (144428751).

1011001201 is an equidigital number, since it uses as much as digits as its factorization.

1011001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144428750.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1011001201 is about 31796.2450770527. The cubic root of 1011001201 is about 1003.6537012091.

Adding to 1011001201 its reverse (1021001101), we get a palindrome (2032002302).

The spelling of 1011001201 in words is "one billion, eleven million, one thousand, two hundred one".