2011000401 has 6 divisors (see below), whose sum is σ = 2904778370. Its totient is φ = 1340666928.

The previous prime is 2011000367. The next prime is 2011000417. The reversal of 2011000401 is 1040001102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1940843025 + 70157376 = 44055^2 + 8376^2 .

It is not a de Polignac number, because 2011000401 - 2¹⁵ = 2010967633 is a prime.

It is a super-2 number, since 2×2011000401² = 8088245225644321602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 223444489 = 2011000401 / (2 + 0 + 1 + 1 + 0 + 0 + 0 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011000441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111722236 + ... + 111722253.

Almost surely, 2^2011000401 is an apocalyptic number.

It is an amenable number.

2011000401 is a deficient number, since it is larger than the sum of its proper divisors (893777969).

2011000401 is a wasteful number, since it uses less digits than its factorization.

2011000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223444495 (or 223444492 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2011000401 is about 44844.1791205949. The cubic root of 2011000401 is about 1262.2267672080.

Adding to 2011000401 its reverse (1040001102), we get a palindrome (3051001503).

The spelling of 2011000401 in words is "two billion, eleven million, four hundred one", and thus it is an aban number.