20301220310 has 128 divisors (see below), whose sum is σ = 45668655360. Its totient is φ = 6338248704.

The previous prime is 20301220283. The next prime is 20301220343. The reversal of 20301220310 is 1302210302.

It is a happy number.

It is a super-2 number, since 2×20301220310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8496596 + ... + 8498984.

It is an arithmetic number, because the mean of its divisors is an integer number (356786370).

Almost surely, 2^20301220310 is an apocalyptic number.

20301220310 is an abundant number, since it is smaller than the sum of its proper divisors (25367435050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20301220310 is a wasteful number, since it uses less digits than its factorization.

20301220310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20301220310 its reverse (1302210302), we get a palindrome (21603430612).

It can be divided in two parts, 203012 and 20310, that added together give a palindrome (223322).

The spelling of 20301220310 in words is "twenty billion, three hundred one million, two hundred twenty thousand, three hundred ten".