51321100234 has 16 divisors (see below), whose sum is σ = 77345313696. Its totient is φ = 25539401200.

The previous prime is 51321100189. The next prime is 51321100319. The reversal of 51321100234 is 43200112315.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568724 + ... + 1601104.

It is an arithmetic number, because the mean of its divisors is an integer number (4834082106).

Almost surely, 2^51321100234 is an apocalyptic number.

51321100234 is a deficient number, since it is larger than the sum of its proper divisors (26024213462).

51321100234 is a wasteful number, since it uses less digits than its factorization.

51321100234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36101.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 51321100234 its reverse (43200112315), we get a palindrome (94521212549).

The spelling of 51321100234 in words is "fifty-one billion, three hundred twenty-one million, one hundred thousand, two hundred thirty-four".