21113204150350 has 48 divisors (see below), whose sum is σ = 42292310306400. Its totient is φ = 7795471651200.

The previous prime is 21113204150323. The next prime is 21113204150393. The reversal of 21113204150350 is 5305140231112.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 31065976 + ... + 31738324.

It is an arithmetic number, because the mean of its divisors is an integer number (881089798050).

Almost surely, 2^{21113204150350} is an apocalyptic number.

21113204150350 is an abundant number, since it is smaller than the sum of its proper divisors (21179106156050).

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

21113204150350 is a wasteful number, since it uses less digits than its factorization.

21113204150350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720685 (or 720680 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 21113204150350 its reverse (5305140231112), we get a palindrome (26418344381462).

The spelling of 21113204150350 in words is "twenty-one trillion, one hundred thirteen billion, two hundred four million, one hundred fifty thousand, three hundred fifty".