120955021321 has 2 divisors, whose sum is σ = 120955021322. Its totient is φ = 120955021320.

The previous prime is 120955021237. The next prime is 120955021331. The reversal of 120955021321 is 123120559021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67633284096 + 53321737225 = 260064^2 + 230915^2 .

It is an emirp because it is prime and its reverse (123120559021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120955021321 - 2¹³ = 120955013129 is a prime.

It is not a weakly prime, because it can be changed into another prime (120955021331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60477510660 + 60477510661.

It is an arithmetic number, because the mean of its divisors is an integer number (60477510661).

Almost surely, 2^120955021321 is an apocalyptic number.

It is an amenable number.

120955021321 is a deficient number, since it is larger than the sum of its proper divisors (1).

120955021321 is an equidigital number, since it uses as much as digits as its factorization.

120955021321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 120955021321 in words is "one hundred twenty billion, nine hundred fifty-five million, twenty-one thousand, three hundred twenty-one".