20102011140 has 48 divisors (see below), whose sum is σ = 56442476160. Its totient is φ = 5345598720.

The previous prime is 20102011129. The next prime is 20102011147. The reversal of 20102011140 is 4111020102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20102011147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445081 + ... + 488160.

It is an arithmetic number, because the mean of its divisors is an integer number (1175884920).

Almost surely, 2^20102011140 is an apocalyptic number.

20102011140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102011140 is an abundant number, since it is smaller than the sum of its proper divisors (36340465020).

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

20102011140 is a wasteful number, since it uses less digits than its factorization.

20102011140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933612 (or 933610 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20102011140 its reverse (4111020102), we get a palindrome (24213031242).

The spelling of 20102011140 in words is "twenty billion, one hundred two million, eleven thousand, one hundred forty".