203400221011 has 16 divisors (see below), whose sum is σ = 231981974784. Its totient is φ = 176671217664.

The previous prime is 203400220997. The next prime is 203400221021. The reversal of 203400221011 is 110122004302.

It is a cyclic number.

It is not a de Polignac number, because 203400221011 - 2¹³ = 203400212819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203400221021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941515 + ... + 1137211.

It is an arithmetic number, because the mean of its divisors is an integer number (14498873424).

Almost surely, 2^203400221011 is an apocalyptic number.

203400221011 is a deficient number, since it is larger than the sum of its proper divisors (28581753773).

203400221011 is a wasteful number, since it uses less digits than its factorization.

203400221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200430.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 203400221011 its reverse (110122004302), we get a palindrome (313522225313).

The spelling of 203400221011 in words is "two hundred three billion, four hundred million, two hundred twenty-one thousand, eleven".