2104031102420 has 72 divisors (see below), whose sum is σ = 4786518110976. Its totient is φ = 776544043392.

The previous prime is 2104031102419. The next prime is 2104031102441. The reversal of 2104031102420 is 242011304012.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2104031102392 and 2104031102401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7923929 + ... + 8185151.

It is an arithmetic number, because the mean of its divisors is an integer number (66479418208).

Almost surely, 2^{2104031102420} is an apocalyptic number.

2104031102420 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 2104031102420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2393259055488).

2104031102420 is an abundant number, since it is smaller than the sum of its proper divisors (2682487008556).

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

2104031102420 is a wasteful number, since it uses less digits than its factorization.

2104031102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263641 (or 263626 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2104031102420 its reverse (242011304012), we get a palindrome (2346042406432).

The spelling of 2104031102420 in words is "two trillion, one hundred four billion, thirty-one million, one hundred two thousand, four hundred twenty".