21302310011012 has 6 divisors (see below), whose sum is σ = 37279042519278. Its totient is φ = 10651155005504.

The previous prime is 21302310010999. The next prime is 21302310011029. The reversal of 21302310011012 is 21011001320312.

It can be written as a sum of positive squares in only one way, i.e., 19907605698436 + 1394704312576 = 4461794^2 + 1180976^2 .

It is a super-2 number, since 2×21302310011012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2662788751373 + ... + 2662788751380.

It is an arithmetic number, because the mean of its divisors is an integer number (6213173753213).

Almost surely, 2^{21302310011012} is an apocalyptic number.

It is an amenable number.

21302310011012 is a deficient number, since it is larger than the sum of its proper divisors (15976732508266).

21302310011012 is a wasteful number, since it uses less digits than its factorization.

21302310011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5325577502757 (or 5325577502755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21302310011012 its reverse (21011001320312), we get a palindrome (42313311331324).

The spelling of 21302310011012 in words is "twenty-one trillion, three hundred two billion, three hundred ten million, eleven thousand, twelve".