211003401 has 16 divisors (see below), whose sum is σ = 322818048. Its totient is φ = 120090000.

The previous prime is 211003381. The next prime is 211003423. The reversal of 211003401 is 104300112.

It is a happy number.

It is not a de Polignac number, because 211003401 - 2⁵ = 211003369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211003501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14745 + ... + 25286.

It is an arithmetic number, because the mean of its divisors is an integer number (20176128).

Almost surely, 2^211003401 is an apocalyptic number.

211003401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211003401 is a deficient number, since it is larger than the sum of its proper divisors (111814647).

211003401 is a wasteful number, since it uses less digits than its factorization.

211003401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40292.

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

The square root of 211003401 is about 14525.9561131101. The cubic root of 211003401 is about 595.3373799248.

Adding to 211003401 its reverse (104300112), we get a palindrome (315303513).

The spelling of 211003401 in words is "two hundred eleven million, three thousand, four hundred one".