21152360364050 has 12 divisors (see below), whose sum is σ = 39343390277226. Its totient is φ = 8460944145600.

The previous prime is 21152360364041. The next prime is 21152360364067. The reversal of 21152360364050 is 5046306325112.

It can be written as a sum of positive squares in 3 ways, for example, as 10194029310481 + 10958331053569 = 3192809^2 + 3310337^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21152360363995 and 21152360364013.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211523603591 + ... + 211523603690.

Almost surely, 2^{21152360364050} is an apocalyptic number.

21152360364050 is a deficient number, since it is larger than the sum of its proper divisors (18191029913176).

21152360364050 is a wasteful number, since it uses less digits than its factorization.

21152360364050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423047207293 (or 423047207288 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 21152360364050 its reverse (5046306325112), we get a palindrome (26198666689162).

The spelling of 21152360364050 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred sixty million, three hundred sixty-four thousand, fifty".