120021303947 has 2 divisors, whose sum is σ = 120021303948. Its totient is φ = 120021303946.

The previous prime is 120021303931. The next prime is 120021303967. The reversal of 120021303947 is 749303120021.

It is a weak prime.

It is an emirp because it is prime and its reverse (749303120021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120021303947 - 2⁴ = 120021303931 is a prime.

It is a super-2 number, since 2×120021303947² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120021303967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010651973 + 60010651974.

It is an arithmetic number, because the mean of its divisors is an integer number (60010651974).

Almost surely, 2^120021303947 is an apocalyptic number.

120021303947 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021303947 is an equidigital number, since it uses as much as digits as its factorization.

120021303947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 120021303947 its reverse (749303120021), we get a palindrome (869324423968).

The spelling of 120021303947 in words is "one hundred twenty billion, twenty-one million, three hundred three thousand, nine hundred forty-seven".