21146532203102 has 8 divisors (see below), whose sum is σ = 33585668793216. Its totient is φ = 9951309272032.

The previous prime is 21146532203087. The next prime is 21146532203113. The reversal of 21146532203102 is 20130223564112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310978414718 + ... + 310978414785.

It is an arithmetic number, because the mean of its divisors is an integer number (4198208599152).

Almost surely, 2^{21146532203102} is an apocalyptic number.

21146532203102 is a deficient number, since it is larger than the sum of its proper divisors (12439136590114).

21146532203102 is a wasteful number, since it uses less digits than its factorization.

21146532203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621956829522.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 21146532203102 its reverse (20130223564112), we get a palindrome (41276755767214).

The spelling of 21146532203102 in words is "twenty-one trillion, one hundred forty-six billion, five hundred thirty-two million, two hundred three thousand, one hundred two".