201010102011 has 8 divisors (see below), whose sum is σ = 297792743760. Its totient is φ = 134006734656.

The previous prime is 201010102003. The next prime is 201010102031. The reversal of 201010102011 is 110201010102.

It is a happy number.

It is not a de Polignac number, because 201010102011 - 2³ = 201010102003 is a prime.

It is a super-2 number, since 2×201010102011² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 201010101984 and 201010102002.

It is not an unprimeable number, because it can be changed into a prime (201010102031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3722409270 + ... + 3722409323.

It is an arithmetic number, because the mean of its divisors is an integer number (37224092970).

Almost surely, 2^201010102011 is an apocalyptic number.

201010102011 is a deficient number, since it is larger than the sum of its proper divisors (96782641749).

201010102011 is an equidigital number, since it uses as much as digits as its factorization.

201010102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444818602 (or 7444818596 counting only the distinct ones).

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

Adding to 201010102011 its reverse (110201010102), we get a palindrome (311211112113).

The spelling of 201010102011 in words is "two hundred one billion, ten million, one hundred two thousand, eleven".