51223312031199 has 32 divisors (see below), whose sum is σ = 85212099847680. Its totient is φ = 26590244284800.

The previous prime is 51223312031189. The next prime is 51223312031207. The reversal of 51223312031199 is 99113021332215.

It is a happy number.

It is not a de Polignac number, because 51223312031199 - 2⁴⁰ = 50123800403423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51223312031199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51223312031189) 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, 79965544 + ... + 80603565.

It is an arithmetic number, because the mean of its divisors is an integer number (2662878120240).

Almost surely, 2^{51223312031199} is an apocalyptic number.

51223312031199 is a deficient number, since it is larger than the sum of its proper divisors (33988787816481).

51223312031199 is a wasteful number, since it uses less digits than its factorization.

51223312031199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160570511.

The product of its (nonzero) digits is 87480, while the sum is 42.

The spelling of 51223312031199 in words is "fifty-one trillion, two hundred twenty-three billion, three hundred twelve million, thirty-one thousand, one hundred ninety-nine".