20110401003 has 96 divisors (see below), whose sum is σ = 36654170112. Its totient is φ = 9669844800.

The previous prime is 20110401001. The next prime is 20110401007. The reversal of 20110401003 is 30010401102.

It is a happy number.

It is not a de Polignac number, because 20110401003 - 2¹ = 20110401001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20110401003.

It is not an unprimeable number, because it can be changed into a prime (20110401001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1144200 + ... + 1161642.

It is an arithmetic number, because the mean of its divisors is an integer number (381814272).

Almost surely, 2^20110401003 is an apocalyptic number.

20110401003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20110401003 is a deficient number, since it is larger than the sum of its proper divisors (16543769109).

20110401003 is a wasteful number, since it uses less digits than its factorization.

20110401003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17525 (or 17518 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20110401003 its reverse (30010401102), we get a palindrome (50120802105).

Subtracting 20110401003 from its reverse (30010401102), we obtain a palindrome (9900000099).

The spelling of 20110401003 in words is "twenty billion, one hundred ten million, four hundred one thousand, three".