20110311340 has 24 divisors (see below), whose sum is σ = 48264747552. Its totient is φ = 6894963840.

The previous prime is 20110311329. The next prime is 20110311343. The reversal of 20110311340 is 4311301102.

It is not an unprimeable number, because it can be changed into a prime (20110311343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71822401 + ... + 71822680.

It is an arithmetic number, because the mean of its divisors is an integer number (2011031148).

Almost surely, 2^20110311340 is an apocalyptic number.

20110311340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110311340 is an abundant number, since it is smaller than the sum of its proper divisors (28154436212).

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

20110311340 is a wasteful number, since it uses less digits than its factorization.

20110311340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143645097 (or 143645095 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20110311340 its reverse (4311301102), we get a palindrome (24421612442).

The spelling of 20110311340 in words is "twenty billion, one hundred ten million, three hundred eleven thousand, three hundred forty".