76112312121 has 16 divisors (see below), whose sum is σ = 112768398720. Its totient is φ = 50737303440.

The previous prime is 76112312077. The next prime is 76112312141. The reversal of 76112312121 is 12121321167.

76112312121 is a `hidden beast` number, since 7 + 611 + 2 + 3 + 1 + 21 + 21 = 666.

It is not a de Polignac number, because 76112312121 - 2⁷ = 76112311993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (76112312141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230236 + ... + 453026.

It is an arithmetic number, because the mean of its divisors is an integer number (7048024920).

Almost surely, 2^76112312121 is an apocalyptic number.

It is an amenable number.

76112312121 is a deficient number, since it is larger than the sum of its proper divisors (36656086599).

76112312121 is a wasteful number, since it uses less digits than its factorization.

76112312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235453 (or 235447 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

Adding to 76112312121 its reverse (12121321167), we get a palindrome (88233633288).

The spelling of 76112312121 in words is "seventy-six billion, one hundred twelve million, three hundred twelve thousand, one hundred twenty-one".