51241145211 has 10 divisors (see below), whose sum is σ = 76545414572. Its totient is φ = 34160763420.

The previous prime is 51241145191. The next prime is 51241145231. The reversal of 51241145211 is 11254114215.

51241145211 is a `hidden beast` number, since 5 + 1 + 24 + 114 + 521 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (51241145191) and next prime (51241145231).

It is not a de Polignac number, because 51241145211 - 2⁷ = 51241145083 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51241145231) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 316303285 + ... + 316303446.

Almost surely, 2^51241145211 is an apocalyptic number.

51241145211 is a deficient number, since it is larger than the sum of its proper divisors (25304269361).

51241145211 is an equidigital number, since it uses as much as digits as its factorization.

51241145211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632606743 (or 632606734 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

Adding to 51241145211 its reverse (11254114215), we get a palindrome (62495259426).

The spelling of 51241145211 in words is "fifty-one billion, two hundred forty-one million, one hundred forty-five thousand, two hundred eleven".