51213012204033 has 32 divisors (see below), whose sum is σ = 82925560581120. Its totient is φ = 31097085200640.

The previous prime is 51213012204023. The next prime is 51213012204041. The reversal of 51213012204033 is 33040221031215.

51213012204033 is a `hidden beast` number, since 5 + 1 + 2 + 1 + 30 + 1 + 220 + 403 + 3 = 666.

It is not a de Polignac number, because 51213012204033 - 2⁴ = 51213012204017 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 51213012203988 and 51213012204006.

It is not an unprimeable number, because it can be changed into a prime (51213012204023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1799585610 + ... + 1799614067.

It is an arithmetic number, because the mean of its divisors is an integer number (2591423768160).

Almost surely, 2^{51213012204033} is an apocalyptic number.

It is an amenable number.

51213012204033 is a deficient number, since it is larger than the sum of its proper divisors (31712548377087).

51213012204033 is a wasteful number, since it uses less digits than its factorization.

51213012204033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599199734 (or 3599199728 counting only the distinct ones).

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

Adding to 51213012204033 its reverse (33040221031215), we get a palindrome (84253233235248).

The spelling of 51213012204033 in words is "fifty-one trillion, two hundred thirteen billion, twelve million, two hundred four thousand, thirty-three".