1011202011 has 12 divisors (see below), whose sum is σ = 1475684392. Its totient is φ = 667184256.

The previous prime is 1011201991. The next prime is 1011202013. The reversal of 1011202011 is 1102021101.

It is a happy number.

It is not a de Polignac number, because 1011202011 - 2⁵ = 1011201979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011201984 and 1011202002.

It is not an unprimeable number, because it can be changed into a prime (1011202013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 578281 + ... + 580026.

Almost surely, 2^1011202011 is an apocalyptic number.

1011202011 is a deficient number, since it is larger than the sum of its proper divisors (464482381).

1011202011 is a wasteful number, since it uses less digits than its factorization.

1011202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158410 (or 1158407 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1011202011 is about 31799.4026830694. The cubic root of 1011202011 is about 1003.7201470112.

Adding to 1011202011 its reverse (1102021101), we get a palindrome (2113223112).

The spelling of 1011202011 in words is "one billion, eleven million, two hundred two thousand, eleven".