21603214153034 has 8 divisors (see below), whose sum is σ = 32408256519300. Its totient is φ = 10800461979936.

The previous prime is 21603214152973. The next prime is 21603214153051. The reversal of 21603214153034 is 43035141230612.

It can be written as a sum of positive squares in 2 ways, for example, as 21602072726809 + 1141426225 = 4647803^2 + 33785^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21603214152985 and 21603214153003.

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, 572524709 + ... + 572562440.

Almost surely, 2^{21603214153034} is an apocalyptic number.

21603214153034 is a deficient number, since it is larger than the sum of its proper divisors (10805042366266).

21603214153034 is a wasteful number, since it uses less digits than its factorization.

21603214153034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145096584.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 21603214153034 its reverse (43035141230612), we get a palindrome (64638355383646).

The spelling of 21603214153034 in words is "twenty-one trillion, six hundred three billion, two hundred fourteen million, one hundred fifty-three thousand, thirty-four".