51226302123 has 40 divisors (see below), whose sum is σ = 79494107616. Its totient is φ = 32848502400.

The previous prime is 51226302089. The next prime is 51226302139. The reversal of 51226302123 is 32120362215.

It is a happy number.

51226302123 is a `hidden beast` number, since 5 + 1 + 2 + 2 + 630 + 2 + 1 + 23 = 666.

It is not a de Polignac number, because 51226302123 - 2²² = 51222107819 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 (51226302163) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 127165 + ... + 344417.

Almost surely, 2^51226302123 is an apocalyptic number.

51226302123 is a deficient number, since it is larger than the sum of its proper divisors (28267805493).

51226302123 is a wasteful number, since it uses less digits than its factorization.

51226302123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217377 (or 217368 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 51226302123 its reverse (32120362215), we get a palindrome (83346664338).

The spelling of 51226302123 in words is "fifty-one billion, two hundred twenty-six million, three hundred two thousand, one hundred twenty-three".