120021415289 has 2 divisors, whose sum is σ = 120021415290. Its totient is φ = 120021415288.

The previous prime is 120021415273. The next prime is 120021415351. The reversal of 120021415289 is 982514120021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72828197689 + 47193217600 = 269867^2 + 217240^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021415289 - 2⁴ = 120021415273 is a prime.

It is not a weakly prime, because it can be changed into another prime (120021115289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010707644 + 60010707645.

It is an arithmetic number, because the mean of its divisors is an integer number (60010707645).

Almost surely, 2^120021415289 is an apocalyptic number.

It is an amenable number.

120021415289 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021415289 is an equidigital number, since it uses as much as digits as its factorization.

120021415289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 120021415289 in words is "one hundred twenty billion, twenty-one million, four hundred fifteen thousand, two hundred eighty-nine".