21433211102 has 4 divisors (see below), whose sum is σ = 32149816656. Its totient is φ = 10716605550.

The previous prime is 21433211101. The next prime is 21433211141. The reversal of 21433211102 is 20111233412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433211101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5358302774 + ... + 5358302777.

It is an arithmetic number, because the mean of its divisors is an integer number (8037454164).

Almost surely, 2^21433211102 is an apocalyptic number.

21433211102 is a deficient number, since it is larger than the sum of its proper divisors (10716605554).

21433211102 is a wasteful number, since it uses less digits than its factorization.

21433211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716605553.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21433211102 its reverse (20111233412), we get a palindrome (41544444514).

The spelling of 21433211102 in words is "twenty-one billion, four hundred thirty-three million, two hundred eleven thousand, one hundred two".