21011313213232 has 20 divisors (see below), whose sum is σ = 40718198752416. Its totient is φ = 10503390954560.

The previous prime is 21011313213199. The next prime is 21011313213263. The reversal of 21011313213232 is 23231231311012.

It is a junction number, because it is equal to n+sod(n) for n = 21011313213197 and 21011313213206.

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, 141526744 + ... + 141675127.

Almost surely, 2^{21011313213232} is an apocalyptic number.

It is an amenable number.

21011313213232 is a deficient number, since it is larger than the sum of its proper divisors (19706885539184).

21011313213232 is a wasteful number, since it uses less digits than its factorization.

21011313213232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283206516 (or 283206510 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21011313213232 its reverse (23231231311012), we get a palindrome (44242544524244).

The spelling of 21011313213232 in words is "twenty-one trillion, eleven billion, three hundred thirteen million, two hundred thirteen thousand, two hundred thirty-two".