51121102 has 8 divisors (see below), whose sum is σ = 76757112. Its totient is φ = 25535400.

The previous prime is 51121073. The next prime is 51121117. The reversal of 51121102 is 20112115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×51121102² = 5226734139388808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9924 + ... + 14167.

It is an arithmetic number, because the mean of its divisors is an integer number (9594639).

Almost surely, 2^51121102 is an apocalyptic number.

51121102 is a deficient number, since it is larger than the sum of its proper divisors (25636010).

51121102 is a wasteful number, since it uses less digits than its factorization.

51121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25154.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 51121102 is about 7149.9022370939. The cubic root of 51121102 is about 371.1362731760.

Adding to 51121102 its reverse (20112115), we get a palindrome (71233217).

The spelling of 51121102 in words is "fifty-one million, one hundred twenty-one thousand, one hundred two".