20102100119077 has 2 divisors, whose sum is σ = 20102100119078. Its totient is φ = 20102100119076.

The previous prime is 20102100119021. The next prime is 20102100119093. The reversal of 20102100119077 is 77091100120102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19902314362401 + 199785756676 = 4461201^2 + 446974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102100119077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102100119477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051050059538 + 10051050059539.

It is an arithmetic number, because the mean of its divisors is an integer number (10051050059539).

Almost surely, 2^{20102100119077} is an apocalyptic number.

It is an amenable number.

20102100119077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102100119077 is an equidigital number, since it uses as much as digits as its factorization.

20102100119077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 31.

Adding to 20102100119077 its reverse (77091100120102), we get a palindrome (97193200239179).

The spelling of 20102100119077 in words is "twenty trillion, one hundred two billion, one hundred million, one hundred nineteen thousand, seventy-seven".