101021115047 has 2 divisors, whose sum is σ = 101021115048. Its totient is φ = 101021115046.

The previous prime is 101021115031. The next prime is 101021115049. The reversal of 101021115047 is 740511120101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101021115047 - 2⁴ = 101021115031 is a prime.

Together with 101021115049, 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 (101021115049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510557523 + 50510557524.

It is an arithmetic number, because the mean of its divisors is an integer number (50510557524).

Almost surely, 2^101021115047 is an apocalyptic number.

101021115047 is a deficient number, since it is larger than the sum of its proper divisors (1).

101021115047 is an equidigital number, since it uses as much as digits as its factorization.

101021115047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 101021115047 its reverse (740511120101), we get a palindrome (841532235148).

The spelling of 101021115047 in words is "one hundred one billion, twenty-one million, one hundred fifteen thousand, forty-seven".