20112553453 has 2 divisors, whose sum is σ = 20112553454. Its totient is φ = 20112553452.

The previous prime is 20112553441. The next prime is 20112553459. The reversal of 20112553453 is 35435521102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20024231049 + 88322404 = 141507^2 + 9398^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112553453 - 2¹³ = 20112545261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112553459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056276726 + 10056276727.

It is an arithmetic number, because the mean of its divisors is an integer number (10056276727).

Almost surely, 2^20112553453 is an apocalyptic number.

It is an amenable number.

20112553453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112553453 is an equidigital number, since it uses as much as digits as its factorization.

20112553453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20112553453 in words is "twenty billion, one hundred twelve million, five hundred fifty-three thousand, four hundred fifty-three".