2102103122140 has 96 divisors (see below), whose sum is σ = 5116316897664. Its totient is φ = 710548070400.

The previous prime is 2102103122107. The next prime is 2102103122173. The reversal of 2102103122140 is 412213012012.

It is an interprime number because it is at equal distance from previous prime (2102103122107) and next prime (2102103122173).

It is a super-2 number, since 2×2102103122140² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24863940 + ... + 24948340.

It is an arithmetic number, because the mean of its divisors is an integer number (53294967684).

Almost surely, 2^{2102103122140} is an apocalyptic number.

2102103122140 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 2102103122140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2558158448832).

2102103122140 is an abundant number, since it is smaller than the sum of its proper divisors (3014213775524).

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

2102103122140 is a wasteful number, since it uses less digits than its factorization.

2102103122140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86927 (or 86925 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2102103122140 its reverse (412213012012), we get a palindrome (2514316134152).

The spelling of 2102103122140 in words is "two trillion, one hundred two billion, one hundred three million, one hundred twenty-two thousand, one hundred forty".