51243700101 has 32 divisors (see below), whose sum is σ = 75533504640. Its totient is φ = 30643660800.

The previous prime is 51243700099. The next prime is 51243700111. The reversal of 51243700101 is 10100734215.

It is not a de Polignac number, because 51243700101 - 2¹ = 51243700099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51243700111) 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, 837321 + ... + 896433.

It is an arithmetic number, because the mean of its divisors is an integer number (2360422020).

Almost surely, 2^51243700101 is an apocalyptic number.

It is an amenable number.

51243700101 is a deficient number, since it is larger than the sum of its proper divisors (24289804539).

51243700101 is a wasteful number, since it uses less digits than its factorization.

51243700101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59477.

The product of its (nonzero) digits is 840, while the sum is 24.

The spelling of 51243700101 in words is "fifty-one billion, two hundred forty-three million, seven hundred thousand, one hundred one".