7042120853 has 2 divisors, whose sum is σ = 7042120854. Its totient is φ = 7042120852.

The previous prime is 7042120831. The next prime is 7042120901. The reversal of 7042120853 is 3580212407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3621391684 + 3420729169 = 60178^2 + 58487^2 .

It is a cyclic number.

It is not a de Polignac number, because 7042120853 - 2¹⁸ = 7041858709 is a prime.

It is a super-2 number, since 2×7042120853² = 99182932216514895218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7042120823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3521060426 + 3521060427.

It is an arithmetic number, because the mean of its divisors is an integer number (3521060427).

Almost surely, 2^7042120853 is an apocalyptic number.

It is an amenable number.

7042120853 is a deficient number, since it is larger than the sum of its proper divisors (1).

7042120853 is an equidigital number, since it uses as much as digits as its factorization.

7042120853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 7042120853 is about 83917.3453643524. The cubic root of 7042120853 is about 1916.7603836755.

The spelling of 7042120853 in words is "seven billion, forty-two million, one hundred twenty thousand, eight hundred fifty-three".