101215434077 has 2 divisors, whose sum is σ = 101215434078. Its totient is φ = 101215434076.

The previous prime is 101215434011. The next prime is 101215434079. The reversal of 101215434077 is 770434512101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86517751321 + 14697682756 = 294139^2 + 121234^2 .

It is a cyclic number.

It is not a de Polignac number, because 101215434077 - 2¹² = 101215429981 is a prime.

Together with 101215434079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101215434079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50607717038 + 50607717039.

It is an arithmetic number, because the mean of its divisors is an integer number (50607717039).

Almost surely, 2^101215434077 is an apocalyptic number.

It is an amenable number.

101215434077 is a deficient number, since it is larger than the sum of its proper divisors (1).

101215434077 is an equidigital number, since it uses as much as digits as its factorization.

101215434077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 101215434077 its reverse (770434512101), we get a palindrome (871649946178).

The spelling of 101215434077 in words is "one hundred one billion, two hundred fifteen million, four hundred thirty-four thousand, seventy-seven".