7061235121 has 4 divisors (see below), whose sum is σ = 7071727972. Its totient is φ = 7050742272.

The previous prime is 7061235113. The next prime is 7061235131. The reversal of 7061235121 is 1215321607.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1215321607 = 83 ⋅14642429.

It can be written as a sum of positive squares in 2 ways, for example, as 2947295521 + 4113939600 = 54289^2 + 64140^2 .

It is a cyclic number.

It is not a de Polignac number, because 7061235121 - 2³ = 7061235113 is a prime.

It is a super-2 number, since 2×7061235121² = 99722082868087769282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7061235121.

It is not an unprimeable number, because it can be changed into a prime (7061235131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5245416 + ... + 5246761.

It is an arithmetic number, because the mean of its divisors is an integer number (1767931993).

Almost surely, 2^7061235121 is an apocalyptic number.

It is an amenable number.

7061235121 is a deficient number, since it is larger than the sum of its proper divisors (10492851).

7061235121 is a wasteful number, since it uses less digits than its factorization.

7061235121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492850.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 7061235121 is about 84031.1556566968. The cubic root of 7061235121 is about 1918.4930233276.

Adding to 7061235121 its reverse (1215321607), we get a palindrome (8276556728).

The spelling of 7061235121 in words is "seven billion, sixty-one million, two hundred thirty-five thousand, one hundred twenty-one".