51142121234434 has 24 divisors (see below), whose sum is σ = 81542317461840. Its totient is φ = 23990018867208.

The previous prime is 51142121234429. The next prime is 51142121234441. The reversal of 51142121234434 is 43443212124115.

It is a junction number, because it is equal to n+sod(n) for n = 51142121234393 and 51142121234402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63026272 + ... + 63832555.

It is an arithmetic number, because the mean of its divisors is an integer number (3397596560910).

Almost surely, 2^{51142121234434} is an apocalyptic number.

51142121234434 is a deficient number, since it is larger than the sum of its proper divisors (30400196227406).

51142121234434 is a wasteful number, since it uses less digits than its factorization.

51142121234434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126859054 (or 126858951 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

Adding to 51142121234434 its reverse (43443212124115), we get a palindrome (94585333358549).

The spelling of 51142121234434 in words is "fifty-one trillion, one hundred forty-two billion, one hundred twenty-one million, two hundred thirty-four thousand, four hundred thirty-four".