21314161152512 has 20 divisors (see below), whose sum is σ = 42586693085046. Its totient is φ = 10657080576000.

The previous prime is 21314161152407. The next prime is 21314161152521. The reversal of 21314161152512 is 21525116141312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19867202365696 + 1446958786816 = 4457264^2 + 1202896^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20814609989 + ... + 20814611012.

Almost surely, 2^{21314161152512} is an apocalyptic number.

It is an amenable number.

21314161152512 is a deficient number, since it is larger than the sum of its proper divisors (21272531932534).

21314161152512 is an frugal number, since it uses more digits than its factorization.

21314161152512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41629221019 (or 41629221003 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

Adding to 21314161152512 its reverse (21525116141312), we get a palindrome (42839277293824).

The spelling of 21314161152512 in words is "twenty-one trillion, three hundred fourteen billion, one hundred sixty-one million, one hundred fifty-two thousand, five hundred twelve".