2102043014421 has 24 divisors (see below), whose sum is σ = 3260485481760. Its totient is φ = 1201103380512.

The previous prime is 2102043014389. The next prime is 2102043014429. The reversal of 2102043014421 is 1244103402012.

It is not a de Polignac number, because 2102043014421 - 2⁵ = 2102043014389 is a prime.

It is a super-2 number, since 2×2102043014421² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2102043014391 and 2102043014400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102043014429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2456170 + ... + 3199508.

It is an arithmetic number, because the mean of its divisors is an integer number (135853561740).

Almost surely, 2^{2102043014421} is an apocalyptic number.

2102043014421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2102043014421 is a deficient number, since it is larger than the sum of its proper divisors (1158442467339).

2102043014421 is a wasteful number, since it uses less digits than its factorization.

2102043014421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762593 (or 762586 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 2102043014421 its reverse (1244103402012), we get a palindrome (3346146416433).

The spelling of 2102043014421 in words is "two trillion, one hundred two billion, forty-three million, fourteen thousand, four hundred twenty-one".