2102021210053 has 2 divisors, whose sum is σ = 2102021210054. Its totient is φ = 2102021210052.

The previous prime is 2102021210011. The next prime is 2102021210071. The reversal of 2102021210053 is 3500121202012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1704009112129 + 398012097924 = 1305377^2 + 630882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102021210053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102021210053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102021210753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051010605026 + 1051010605027.

It is an arithmetic number, because the mean of its divisors is an integer number (1051010605027).

Almost surely, 2^{2102021210053} is an apocalyptic number.

It is an amenable number.

2102021210053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102021210053 is an equidigital number, since it uses as much as digits as its factorization.

2102021210053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 2102021210053 its reverse (3500121202012), we get a palindrome (5602142412065).

The spelling of 2102021210053 in words is "two trillion, one hundred two billion, twenty-one million, two hundred ten thousand, fifty-three".