20553236141 has 2 divisors, whose sum is σ = 20553236142. Its totient is φ = 20553236140.

The previous prime is 20553236107. The next prime is 20553236203. The reversal of 20553236141 is 14163235502.

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., 18447344041 + 2105892100 = 135821^2 + 45890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20553236141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20553236098 and 20553236107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20553236101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10276618070 + 10276618071.

It is an arithmetic number, because the mean of its divisors is an integer number (10276618071).

Almost surely, 2^20553236141 is an apocalyptic number.

It is an amenable number.

20553236141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20553236141 is an equidigital number, since it uses as much as digits as its factorization.

20553236141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20553236141 in words is "twenty billion, five hundred fifty-three million, two hundred thirty-six thousand, one hundred forty-one".