20110323140 has 24 divisors (see below), whose sum is σ = 44454399360. Its totient is φ = 7620753888.

The previous prime is 20110323109. The next prime is 20110323157. The reversal of 20110323140 is 4132301102.

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, 26460572 + ... + 26461331.

It is an arithmetic number, because the mean of its divisors is an integer number (1852266640).

Almost surely, 2^20110323140 is an apocalyptic number.

20110323140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110323140 is an abundant number, since it is smaller than the sum of its proper divisors (24344076220).

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

20110323140 is a wasteful number, since it uses less digits than its factorization.

20110323140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52921931 (or 52921929 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20110323140 its reverse (4132301102), we get a palindrome (24242624242).

The spelling of 20110323140 in words is "twenty billion, one hundred ten million, three hundred twenty-three thousand, one hundred forty".