21030112012310 has 16 divisors (see below), whose sum is σ = 38568431842416. Its totient is φ = 8253326978208.

The previous prime is 21030112012303. The next prime is 21030112012319. The reversal of 21030112012310 is 1321021103012.

It is a super-2 number, since 2×21030112012310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030112012319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19839727784 + ... + 19839728843.

It is an arithmetic number, because the mean of its divisors is an integer number (2410526990151).

Almost surely, 2^{21030112012310} is an apocalyptic number.

21030112012310 is a deficient number, since it is larger than the sum of its proper divisors (17538319830106).

21030112012310 is a wasteful number, since it uses less digits than its factorization.

21030112012310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39679456687.

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

Adding to 21030112012310 its reverse (1321021103012), we get a palindrome (22351133115322).

The spelling of 21030112012310 in words is "twenty-one trillion, thirty billion, one hundred twelve million, twelve thousand, three hundred ten".