21003133234 has 32 divisors (see below), whose sum is σ = 32346961920. Its totient is φ = 10224978192.

The previous prime is 21003133219. The next prime is 21003133243. The reversal of 21003133234 is 43233130012.

It is a super-2 number, since 2×21003133234² (a number of 21 digits) contains 22 as substring.

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, 9532777 + ... + 9534979.

It is an arithmetic number, because the mean of its divisors is an integer number (1010842560).

Almost surely, 2^21003133234 is an apocalyptic number.

21003133234 is a deficient number, since it is larger than the sum of its proper divisors (11343828686).

21003133234 is a wasteful number, since it uses less digits than its factorization.

21003133234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21003133234 its reverse (43233130012), we get a palindrome (64236263246).

The spelling of 21003133234 in words is "twenty-one billion, three million, one hundred thirty-three thousand, two hundred thirty-four".