201103021434 has 32 divisors (see below), whose sum is σ = 475514536320. Its totient is φ = 55476695232.

The previous prime is 201103021367. The next prime is 201103021451. The reversal of 201103021434 is 434120301102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 201103021434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82553389 + ... + 82555824.

It is an arithmetic number, because the mean of its divisors is an integer number (14859829260).

Almost surely, 2^201103021434 is an apocalyptic number.

201103021434 is an abundant number, since it is smaller than the sum of its proper divisors (274411514886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201103021434 is a wasteful number, since it uses less digits than its factorization.

201103021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165109254.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 201103021434 its reverse (434120301102), we get a palindrome (635223322536).

The spelling of 201103021434 in words is "two hundred one billion, one hundred three million, twenty-one thousand, four hundred thirty-four".