121230320047 has 2 divisors, whose sum is σ = 121230320048. Its totient is φ = 121230320046.

The previous prime is 121230320009. The next prime is 121230320051. The reversal of 121230320047 is 740023032121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121230320047 - 2¹⁵ = 121230287279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121230320077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615160023 + 60615160024.

It is an arithmetic number, because the mean of its divisors is an integer number (60615160024).

Almost surely, 2^121230320047 is an apocalyptic number.

121230320047 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230320047 is an equidigital number, since it uses as much as digits as its factorization.

121230320047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 121230320047 its reverse (740023032121), we get a palindrome (861253352168).

The spelling of 121230320047 in words is "one hundred twenty-one billion, two hundred thirty million, three hundred twenty thousand, forty-seven".