2051102140 has 48 divisors (see below), whose sum is σ = 4461518880. Its totient is φ = 791141120.

The previous prime is 2051102129. The next prime is 2051102147. The reversal of 2051102140 is 412011502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051102147) 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, 585795 + ... + 589285.

It is an arithmetic number, because the mean of its divisors is an integer number (92948310).

Almost surely, 2^2051102140 is an apocalyptic number.

2051102140 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 2051102140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2230759440).

2051102140 is an abundant number, since it is smaller than the sum of its proper divisors (2410416740).

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

2051102140 is a wasteful number, since it uses less digits than its factorization.

2051102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542 (or 4540 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2051102140 is about 45289.0951554566. The cubic root of 2051102140 is about 1270.5617082494.

Adding to 2051102140 its reverse (412011502), we get a palindrome (2463113642).

The spelling of 2051102140 in words is "two billion, fifty-one million, one hundred two thousand, one hundred forty".