20301312210 has 32 divisors (see below), whose sum is σ = 48925337472. Its totient is φ = 5391217920.

The previous prime is 20301312167. The next prime is 20301312253. The reversal of 20301312210 is 1221310302.

It is an interprime number because it is at equal distance from previous prime (20301312167) and next prime (20301312253).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20301312210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1396734 + ... + 1411193.

It is an arithmetic number, because the mean of its divisors is an integer number (1528916796).

Almost surely, 2^20301312210 is an apocalyptic number.

20301312210 is an abundant number, since it is smaller than the sum of its proper divisors (28624025262).

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

20301312210 is a wasteful number, since it uses less digits than its factorization.

20301312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808178.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20301312210 its reverse (1221310302), we get a palindrome (21522622512).

The spelling of 20301312210 in words is "twenty billion, three hundred one million, three hundred twelve thousand, two hundred ten".