2101112078453 has 2 divisors, whose sum is σ = 2101112078454. Its totient is φ = 2101112078452.

The previous prime is 2101112078407. The next prime is 2101112078477. The reversal of 2101112078453 is 3548702111012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1271305860484 + 829806217969 = 1127522^2 + 910937^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101112078453 - 2¹² = 2101112074357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101111078453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050556039226 + 1050556039227.

It is an arithmetic number, because the mean of its divisors is an integer number (1050556039227).

Almost surely, 2^{2101112078453} is an apocalyptic number.

It is an amenable number.

2101112078453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101112078453 is an equidigital number, since it uses as much as digits as its factorization.

2101112078453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

Adding to 2101112078453 its reverse (3548702111012), we get a palindrome (5649814189465).

The spelling of 2101112078453 in words is "two trillion, one hundred one billion, one hundred twelve million, seventy-eight thousand, four hundred fifty-three".