51121444332 has 48 divisors (see below), whose sum is σ = 136344750080. Its totient is φ = 14603887872.

The previous prime is 51121444321. The next prime is 51121444369. The reversal of 51121444332 is 23344412115.

It is a super-2 number, since 2×51121444332² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51121444332.

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, 549669 + ... + 635907.

Almost surely, 2^51121444332 is an apocalyptic number.

It is an amenable number.

51121444332 is an abundant number, since it is smaller than the sum of its proper divisors (85223305748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51121444332 is a wasteful number, since it uses less digits than its factorization.

51121444332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93310 (or 93308 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 51121444332 its reverse (23344412115), we get a palindrome (74465856447).

The spelling of 51121444332 in words is "fifty-one billion, one hundred twenty-one million, four hundred forty-four thousand, three hundred thirty-two".