21103210230310 has 16 divisors (see below), whose sum is σ = 40907761369776. Its totient is φ = 7791954546528.

The previous prime is 21103210230283. The next prime is 21103210230341. The reversal of 21103210230310 is 1303201230112.

It is a super-2 number, since 2×21103210230310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81166193064 + ... + 81166193323.

It is an arithmetic number, because the mean of its divisors is an integer number (2556735085611).

Almost surely, 2^{21103210230310} is an apocalyptic number.

21103210230310 is a deficient number, since it is larger than the sum of its proper divisors (19804551139466).

21103210230310 is a wasteful number, since it uses less digits than its factorization.

21103210230310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162332386407.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21103210230310 its reverse (1303201230112), we get a palindrome (22406411460422).

The spelling of 21103210230310 in words is "twenty-one trillion, one hundred three billion, two hundred ten million, two hundred thirty thousand, three hundred ten".