80000000121 has 8 divisors (see below), whose sum is σ = 106769930080. Its totient is φ = 53281701792.

The previous prime is 80000000107. The next prime is 80000000123. The reversal of 80000000121 is 12100000008.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80000000121 - 2⁷ = 79999999993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80000000097 and 80000000106.

It is not an unprimeable number, because it can be changed into a prime (80000000123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12904291 + ... + 12910488.

It is an arithmetic number, because the mean of its divisors is an integer number (13346241260).

Almost surely, 2^80000000121 is an apocalyptic number.

It is an amenable number.

80000000121 is a deficient number, since it is larger than the sum of its proper divisors (26769929959).

80000000121 is a wasteful number, since it uses less digits than its factorization.

80000000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25815815.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 80000000121 its reverse (12100000008), we get a palindrome (92100000129).

The spelling of 80000000121 in words is "eighty billion, one hundred twenty-one", and thus it is an aban number.