51013200145323 has 16 divisors (see below), whose sum is σ = 73400133422336. Its totient is φ = 31328277063840.

The previous prime is 51013200145319. The next prime is 51013200145339. The reversal of 51013200145323 is 32354100231015.

It is not a de Polignac number, because 51013200145323 - 2² = 51013200145319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51013200145393) 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, 1342928413 + ... + 1342966398.

It is an arithmetic number, because the mean of its divisors is an integer number (4587508338896).

Almost surely, 2^{51013200145323} is an apocalyptic number.

51013200145323 is a deficient number, since it is larger than the sum of its proper divisors (22386933277013).

51013200145323 is a wasteful number, since it uses less digits than its factorization.

51013200145323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685895314.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 51013200145323 its reverse (32354100231015), we get a palindrome (83367300376338).

The spelling of 51013200145323 in words is "fifty-one trillion, thirteen billion, two hundred million, one hundred forty-five thousand, three hundred twenty-three".