20311311313110 has 64 divisors (see below), whose sum is σ = 48964332441600. Its totient is φ = 5392222157952.

The previous prime is 20311311313063. The next prime is 20311311313151. The reversal of 20311311313110 is 1131311311302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81539331 + ... + 81788049.

It is an arithmetic number, because the mean of its divisors is an integer number (765067694400).

Almost surely, 2^{20311311313110} is an apocalyptic number.

20311311313110 is an abundant number, since it is smaller than the sum of its proper divisors (28653021128490).

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

20311311313110 is a wasteful number, since it uses less digits than its factorization.

20311311313110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260845.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 20311311313110 its reverse (1131311311302), we get a palindrome (21442622624412).

The spelling of 20311311313110 in words is "twenty trillion, three hundred eleven billion, three hundred eleven million, three hundred thirteen thousand, one hundred ten".