2100001220983 has 2 divisors, whose sum is σ = 2100001220984. Its totient is φ = 2100001220982.

The previous prime is 2100001220957. The next prime is 2100001221053. The reversal of 2100001220983 is 3890221000012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100001220983 - 2¹³ = 2100001212791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100001220683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050000610491 + 1050000610492.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000610492).

Almost surely, 2^{2100001220983} is an apocalyptic number.

2100001220983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100001220983 is an equidigital number, since it uses as much as digits as its factorization.

2100001220983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 2100001220983 its reverse (3890221000012), we get a palindrome (5990222220995).

The spelling of 2100001220983 in words is "two trillion, one hundred billion, one million, two hundred twenty thousand, nine hundred eighty-three".