20310132210 has 32 divisors (see below), whose sum is σ = 48748080960. Its totient is φ = 5415617088.

The previous prime is 20310132163. The next prime is 20310132217. The reversal of 20310132210 is 1223101302.

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 20310132210.

It is not an unprimeable number, because it can be changed into a prime (20310132217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695769 + ... + 724371.

It is an arithmetic number, because the mean of its divisors is an integer number (1523377530).

Almost surely, 2^20310132210 is an apocalyptic number.

20310132210 is an abundant number, since it is smaller than the sum of its proper divisors (28437948750).

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

20310132210 is a wasteful number, since it uses less digits than its factorization.

20310132210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52282.

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

Adding to 20310132210 its reverse (1223101302), we get a palindrome (21533233512).

The spelling of 20310132210 in words is "twenty billion, three hundred ten million, one hundred thirty-two thousand, two hundred ten".