20120746453 has 2 divisors, whose sum is σ = 20120746454. Its totient is φ = 20120746452.

The previous prime is 20120746441. The next prime is 20120746511. The reversal of 20120746453 is 35464702102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10395433764 + 9725312689 = 101958^2 + 98617^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120746453 - 2⁵ = 20120746421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20120786453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060373226 + 10060373227.

It is an arithmetic number, because the mean of its divisors is an integer number (10060373227).

Almost surely, 2^20120746453 is an apocalyptic number.

It is an amenable number.

20120746453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120746453 is an equidigital number, since it uses as much as digits as its factorization.

20120746453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 20120746453 in words is "twenty billion, one hundred twenty million, seven hundred forty-six thousand, four hundred fifty-three".