51232423012 has 24 divisors (see below), whose sum is σ = 90120411360. Its totient is φ = 25483839360.

The previous prime is 51232422977. The next prime is 51232423097. The reversal of 51232423012 is 21032423215.

It is a super-2 number, since 2×51232423012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164908 + ... + 2188444.

It is an arithmetic number, because the mean of its divisors is an integer number (3755017140).

Almost surely, 2^51232423012 is an apocalyptic number.

It is an amenable number.

51232423012 is a deficient number, since it is larger than the sum of its proper divisors (38887988348).

51232423012 is a wasteful number, since it uses less digits than its factorization.

51232423012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26331 (or 26329 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 51232423012 its reverse (21032423215), we get a palindrome (72264846227).

The spelling of 51232423012 in words is "fifty-one billion, two hundred thirty-two million, four hundred twenty-three thousand, twelve".