20311011110 has 16 divisors (see below), whose sum is σ = 39372114096. Its totient is φ = 7499450208.

The previous prime is 20311011053. The next prime is 20311011157. The reversal of 20311011110 is 1111011302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20311011091 and 20311011100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78119144 + ... + 78119403.

It is an arithmetic number, because the mean of its divisors is an integer number (2460757131).

Almost surely, 2^20311011110 is an apocalyptic number.

20311011110 is a deficient number, since it is larger than the sum of its proper divisors (19061102986).

20311011110 is a wasteful number, since it uses less digits than its factorization.

20311011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156238567.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 20311011110 its reverse (1111011302), we get a palindrome (21422022412).

The spelling of 20311011110 in words is "twenty billion, three hundred eleven million, eleven thousand, one hundred ten".