20110342340 has 192 divisors, whose sum is σ = 48474961920. Its totient is φ = 6943964160.

The previous prime is 20110342327. The next prime is 20110342363. The reversal of 20110342340 is 4324301102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76465049 + ... + 76465311.

It is an arithmetic number, because the mean of its divisors is an integer number (252473760).

Almost surely, 2^20110342340 is an apocalyptic number.

20110342340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110342340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24237480960).

20110342340 is an abundant number, since it is smaller than the sum of its proper divisors (28364619580).

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

20110342340 is a wasteful number, since it uses less digits than its factorization.

20110342340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20110342340 its reverse (4324301102), we get a palindrome (24434643442).

The spelling of 20110342340 in words is "twenty billion, one hundred ten million, three hundred forty-two thousand, three hundred forty".