120130010121257 has 2 divisors, whose sum is σ = 120130010121258. Its totient is φ = 120130010121256.

The previous prime is 120130010121221. The next prime is 120130010121349. The reversal of 120130010121257 is 752121010031021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92229440275456 + 27900569845801 = 9603616^2 + 5282099^2 .

It is a cyclic number.

It is not a de Polignac number, because 120130010121257 - 2⁸ = 120130010121001 is a prime.

It is not a weakly prime, because it can be changed into another prime (120130010141257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60065005060628 + 60065005060629.

It is an arithmetic number, because the mean of its divisors is an integer number (60065005060629).

Almost surely, 2^{120130010121257} is an apocalyptic number.

It is an amenable number.

120130010121257 is a deficient number, since it is larger than the sum of its proper divisors (1).

120130010121257 is an equidigital number, since it uses as much as digits as its factorization.

120130010121257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 26.

Adding to 120130010121257 its reverse (752121010031021), we get a palindrome (872251020152278).

The spelling of 120130010121257 in words is "one hundred twenty trillion, one hundred thirty billion, ten million, one hundred twenty-one thousand, two hundred fifty-seven".