51031222321141 has 4 divisors (see below), whose sum is σ = 51037699194400. Its totient is φ = 51024745447884.

The previous prime is 51031222321139. The next prime is 51031222321181. The reversal of 51031222321141 is 14112322213015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51031222321141 - 2¹ = 51031222321139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51031222321111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238424811 + ... + 3238440568.

It is an arithmetic number, because the mean of its divisors is an integer number (12759424798600).

Almost surely, 2^{51031222321141} is an apocalyptic number.

It is an amenable number.

51031222321141 is a deficient number, since it is larger than the sum of its proper divisors (6476873259).

51031222321141 is an equidigital number, since it uses as much as digits as its factorization.

51031222321141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476873258.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 51031222321141 its reverse (14112322213015), we get a palindrome (65143544534156).

The spelling of 51031222321141 in words is "fifty-one trillion, thirty-one billion, two hundred twenty-two million, three hundred twenty-one thousand, one hundred forty-one".