101420663653 has 2 divisors, whose sum is σ = 101420663654. Its totient is φ = 101420663652.

The previous prime is 101420663623. The next prime is 101420663689. The reversal of 101420663653 is 356366024101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83785354849 + 17635308804 = 289457^2 + 132798^2 .

It is an emirp because it is prime and its reverse (356366024101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101420663653 - 2²⁵ = 101387109221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101420663623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50710331826 + 50710331827.

It is an arithmetic number, because the mean of its divisors is an integer number (50710331827).

Almost surely, 2^101420663653 is an apocalyptic number.

It is an amenable number.

101420663653 is a deficient number, since it is larger than the sum of its proper divisors (1).

101420663653 is an equidigital number, since it uses as much as digits as its factorization.

101420663653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 101420663653 its reverse (356366024101), we get a palindrome (457786687754).

The spelling of 101420663653 in words is "one hundred one billion, four hundred twenty million, six hundred sixty-three thousand, six hundred fifty-three".