20311211010 has 32 divisors (see below), whose sum is σ = 48752948160. Its totient is φ = 5415651648.

The previous prime is 20311210993. The next prime is 20311211017. The reversal of 20311211010 is 1011211302.

It is not an unprimeable number, because it can be changed into a prime (20311211017) 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, 233856 + ... + 308724.

It is an arithmetic number, because the mean of its divisors is an integer number (1523529630).

Almost surely, 2^20311211010 is an apocalyptic number.

20311211010 is an abundant number, since it is smaller than the sum of its proper divisors (28441737150).

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

20311211010 is a wasteful number, since it uses less digits than its factorization.

20311211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83922.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20311211010 its reverse (1011211302), we get a palindrome (21322422312).

The spelling of 20311211010 in words is "twenty billion, three hundred eleven million, two hundred eleven thousand, ten".