2102000021423 has 2 divisors, whose sum is σ = 2102000021424. Its totient is φ = 2102000021422.

The previous prime is 2102000021419. The next prime is 2102000021431. The reversal of 2102000021423 is 3241200002012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102000021423 - 2² = 2102000021419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102000023423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051000010711 + 1051000010712.

It is an arithmetic number, because the mean of its divisors is an integer number (1051000010712).

Almost surely, 2^{2102000021423} is an apocalyptic number.

2102000021423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102000021423 is an equidigital number, since it uses as much as digits as its factorization.

2102000021423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2102000021423 its reverse (3241200002012), we get a palindrome (5343200023435).

The spelling of 2102000021423 in words is "two trillion, one hundred two billion, twenty-one thousand, four hundred twenty-three".