51020333012 has 48 divisors (see below), whose sum is σ = 101759051520. Its totient is φ = 22169616000.

The previous prime is 51020333011. The next prime is 51020333057. The reversal of 51020333012 is 21033302015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51020333011) 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, 69068 + ... + 326819.

It is an arithmetic number, because the mean of its divisors is an integer number (2119980240).

Almost surely, 2^51020333012 is an apocalyptic number.

It is an amenable number.

51020333012 is a deficient number, since it is larger than the sum of its proper divisors (50738718508).

51020333012 is a wasteful number, since it uses less digits than its factorization.

51020333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396032 (or 396030 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 51020333012 its reverse (21033302015), we get a palindrome (72053635027).

The spelling of 51020333012 in words is "fifty-one billion, twenty million, three hundred thirty-three thousand, twelve".