21352400102 has 32 divisors (see below), whose sum is σ = 35330559264. Its totient is φ = 9597472000.

The previous prime is 21352400101. The next prime is 21352400117. The reversal of 21352400102 is 20100425312.

It is a super-3 number, since 3×21352400102³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21352400101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1898648 + ... + 1909860.

It is an arithmetic number, because the mean of its divisors is an integer number (1104079977).

Almost surely, 2^21352400102 is an apocalyptic number.

21352400102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21352400102 is a deficient number, since it is larger than the sum of its proper divisors (13978159162).

21352400102 is a wasteful number, since it uses less digits than its factorization.

21352400102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12184.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 21352400102 its reverse (20100425312), we get a palindrome (41452825414).

The spelling of 21352400102 in words is "twenty-one billion, three hundred fifty-two million, four hundred thousand, one hundred two".