121045426547 has 2 divisors, whose sum is σ = 121045426548. Its totient is φ = 121045426546.

The previous prime is 121045426501. The next prime is 121045426571. The reversal of 121045426547 is 745624540121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (745624540121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121045426547 - 2⁸ = 121045426291 is a prime.

It is not a weakly prime, because it can be changed into another prime (121045420547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60522713273 + 60522713274.

It is an arithmetic number, because the mean of its divisors is an integer number (60522713274).

Almost surely, 2^121045426547 is an apocalyptic number.

121045426547 is a deficient number, since it is larger than the sum of its proper divisors (1).

121045426547 is an equidigital number, since it uses as much as digits as its factorization.

121045426547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 41.

Adding to 121045426547 its reverse (745624540121), we get a palindrome (866669966668).

The spelling of 121045426547 in words is "one hundred twenty-one billion, forty-five million, four hundred twenty-six thousand, five hundred forty-seven".