21024454152314 has 24 divisors (see below), whose sum is σ = 32678045416380. Its totient is φ = 10144642177152.

The previous prime is 21024454152263. The next prime is 21024454152341. The reversal of 21024454152314 is 41325145442012.

It can be written as a sum of positive squares in 6 ways, for example, as 16781451531289 + 4243002621025 = 4096517^2 + 2059855^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216332 + ... + 6488120.

Almost surely, 2^{21024454152314} is an apocalyptic number.

21024454152314 is a deficient number, since it is larger than the sum of its proper divisors (11653591264066).

21024454152314 is a wasteful number, since it uses less digits than its factorization.

21024454152314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6273842 (or 6273813 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 21024454152314 its reverse (41325145442012), we get a palindrome (62349599594326).

The spelling of 21024454152314 in words is "twenty-one trillion, twenty-four billion, four hundred fifty-four million, one hundred fifty-two thousand, three hundred fourteen".