51121244235 has 16 divisors (see below), whose sum is σ = 83696177664. Its totient is φ = 26630601312.

The previous prime is 51121244227. The next prime is 51121244243. The reversal of 51121244235 is 53244212115.

It is an interprime number because it is at equal distance from previous prime (51121244227) and next prime (51121244243).

It is not a de Polignac number, because 51121244235 - 2³ = 51121244227 is a prime.

It is a super-2 number, since 2×51121244235² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39628227 + ... + 39629516.

It is an arithmetic number, because the mean of its divisors is an integer number (5231011104).

Almost surely, 2^51121244235 is an apocalyptic number.

51121244235 is a deficient number, since it is larger than the sum of its proper divisors (32574933429).

51121244235 is a wasteful number, since it uses less digits than its factorization.

51121244235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79257794.

The product of its digits is 9600, while the sum is 30.

The spelling of 51121244235 in words is "fifty-one billion, one hundred twenty-one million, two hundred forty-four thousand, two hundred thirty-five".