102121302047 has 2 divisors, whose sum is σ = 102121302048. Its totient is φ = 102121302046.

The previous prime is 102121302037. The next prime is 102121302121. The reversal of 102121302047 is 740203121201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102121302047 - 2⁸ = 102121301791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102121302037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060651023 + 51060651024.

It is an arithmetic number, because the mean of its divisors is an integer number (51060651024).

Almost surely, 2^102121302047 is an apocalyptic number.

102121302047 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121302047 is an equidigital number, since it uses as much as digits as its factorization.

102121302047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 102121302047 its reverse (740203121201), we get a palindrome (842324423248).

The spelling of 102121302047 in words is "one hundred two billion, one hundred twenty-one million, three hundred two thousand, forty-seven".