21233310102 has 48 divisors (see below), whose sum is σ = 47779917120. Its totient is φ = 6809083776.

The previous prime is 21233310047. The next prime is 21233310107. The reversal of 21233310102 is 20101333212.

21233310102 is a `hidden beast` number, since 21 + 233 + 310 + 102 = 666.

It is a super-3 number, since 3×21233310102³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233310107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119838 + ... + 238385.

It is an arithmetic number, because the mean of its divisors is an integer number (995414940).

Almost surely, 2^21233310102 is an apocalyptic number.

21233310102 is an abundant number, since it is smaller than the sum of its proper divisors (26546607018).

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

21233310102 is a wasteful number, since it uses less digits than its factorization.

21233310102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358357 (or 358354 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21233310102 its reverse (20101333212), we get a palindrome (41334643314).

The spelling of 21233310102 in words is "twenty-one billion, two hundred thirty-three million, three hundred ten thousand, one hundred two".