20100000140 has 24 divisors (see below), whose sum is σ = 46047273552. Its totient is φ = 7309090880.

The previous prime is 20100000121. The next prime is 20100000149. The reversal of 20100000140 is 4100000102.

It is not an unprimeable number, because it can be changed into a prime (20100000149) 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, 45681599 + ... + 45682038.

It is an arithmetic number, because the mean of its divisors is an integer number (1918636398).

Almost surely, 2^20100000140 is an apocalyptic number.

20100000140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100000140 is an abundant number, since it is smaller than the sum of its proper divisors (25947273412).

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

20100000140 is a wasteful number, since it uses less digits than its factorization.

20100000140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91363657 (or 91363655 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20100000140 its reverse (4100000102), we get a palindrome (24200000242).

The spelling of 20100000140 in words is "twenty billion, one hundred million, one hundred forty", and thus it is an aban number.