1210121130971 has 2 divisors, whose sum is σ = 1210121130972. Its totient is φ = 1210121130970.

The previous prime is 1210121130931. The next prime is 1210121131147. The reversal of 1210121130971 is 1790311210121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210121130971 - 2¹⁰ = 1210121129947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210121130931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605060565485 + 605060565486.

It is an arithmetic number, because the mean of its divisors is an integer number (605060565486).

Almost surely, 2^{1210121130971} is an apocalyptic number.

1210121130971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210121130971 is an equidigital number, since it uses as much as digits as its factorization.

1210121130971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 29.

The spelling of 1210121130971 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred thirty thousand, nine hundred seventy-one".