1202102010077 has 2 divisors, whose sum is σ = 1202102010078. Its totient is φ = 1202102010076.

The previous prime is 1202102010059. The next prime is 1202102010091. The reversal of 1202102010077 is 7700102012021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992904630916 + 209197379161 = 996446^2 + 457381^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202102010077 - 2⁶ = 1202102010013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202102010007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601051005038 + 601051005039.

It is an arithmetic number, because the mean of its divisors is an integer number (601051005039).

Almost surely, 2^{1202102010077} is an apocalyptic number.

It is an amenable number.

1202102010077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202102010077 is an equidigital number, since it uses as much as digits as its factorization.

1202102010077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

Adding to 1202102010077 its reverse (7700102012021), we get a palindrome (8902204022098).

The spelling of 1202102010077 in words is "one trillion, two hundred two billion, one hundred two million, ten thousand, seventy-seven".