2101021112053 has 2 divisors, whose sum is σ = 2101021112054. Its totient is φ = 2101021112052.

The previous prime is 2101021111993. The next prime is 2101021112059. The reversal of 2101021112053 is 3502111201012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1642452422724 + 458568689329 = 1281582^2 + 677177^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101021112053 - 2¹³ = 2101021103861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101021112053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101021112059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050510556026 + 1050510556027.

It is an arithmetic number, because the mean of its divisors is an integer number (1050510556027).

Almost surely, 2^{2101021112053} is an apocalyptic number.

It is an amenable number.

2101021112053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101021112053 is an equidigital number, since it uses as much as digits as its factorization.

2101021112053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 2101021112053 its reverse (3502111201012), we get a palindrome (5603132313065).

The spelling of 2101021112053 in words is "two trillion, one hundred one billion, twenty-one million, one hundred twelve thousand, fifty-three".