20453141413261 has 2 divisors, whose sum is σ = 20453141413262. Its totient is φ = 20453141413260.

The previous prime is 20453141413213. The next prime is 20453141413319. The reversal of 20453141413261 is 16231414135402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16185896848900 + 4267244564361 = 4023170^2 + 2065731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20453141413261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20453141413261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20453141414261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226570706630 + 10226570706631.

It is an arithmetic number, because the mean of its divisors is an integer number (10226570706631).

Almost surely, 2^{20453141413261} is an apocalyptic number.

It is an amenable number.

20453141413261 is a deficient number, since it is larger than the sum of its proper divisors (1).

20453141413261 is an equidigital number, since it uses as much as digits as its factorization.

20453141413261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 20453141413261 its reverse (16231414135402), we get a palindrome (36684555548663).

The spelling of 20453141413261 in words is "twenty trillion, four hundred fifty-three billion, one hundred forty-one million, four hundred thirteen thousand, two hundred sixty-one".