21011110230302 has 64 divisors (see below), whose sum is σ = 35726062176000. Its totient is φ = 9207448054272.

The previous prime is 21011110230281. The next prime is 21011110230329. The reversal of 21011110230302 is 20303201111012.

It is a super-2 number, since 2×21011110230302² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456849524 + ... + 456895512.

It is an arithmetic number, because the mean of its divisors is an integer number (558219721500).

Almost surely, 2^{21011110230302} is an apocalyptic number.

21011110230302 is a deficient number, since it is larger than the sum of its proper divisors (14714951945698).

21011110230302 is a wasteful number, since it uses less digits than its factorization.

21011110230302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58073.

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

Adding to 21011110230302 its reverse (20303201111012), we get a palindrome (41314311341314).

The spelling of 21011110230302 in words is "twenty-one trillion, eleven billion, one hundred ten million, two hundred thirty thousand, three hundred two".