8770123121 has 4 divisors (see below), whose sum is σ = 8770624500. Its totient is φ = 8769621744.

The previous prime is 8770123111. The next prime is 8770123127. The reversal of 8770123121 is 1213210778.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 741963121 + 8028160000 = 27239^2 + 89600^2 .

It is a cyclic number.

It is not a de Polignac number, because 8770123121 - 2²² = 8765928817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8770123127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223466 + ... + 259763.

It is an arithmetic number, because the mean of its divisors is an integer number (2192656125).

Almost surely, 2^8770123121 is an apocalyptic number.

It is an amenable number.

8770123121 is a deficient number, since it is larger than the sum of its proper divisors (501379).

8770123121 is a wasteful number, since it uses less digits than its factorization.

8770123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501378.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 8770123121 is about 93648.9355038273. The cubic root of 8770123121 is about 2062.2211190042.

Adding to 8770123121 its reverse (1213210778), we get a palindrome (9983333899).

The spelling of 8770123121 in words is "eight billion, seven hundred seventy million, one hundred twenty-three thousand, one hundred twenty-one".