51023134420 has 48 divisors (see below), whose sum is σ = 107918189568. Its totient is φ = 20263184000.

The previous prime is 51023134367. The next prime is 51023134469. The reversal of 51023134420 is 2443132015.

It is a congruent number.

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, 1575309 + ... + 1607371.

It is an arithmetic number, because the mean of its divisors is an integer number (2248295616).

Almost surely, 2^51023134420 is an apocalyptic number.

It is an amenable number.

51023134420 is an abundant number, since it is smaller than the sum of its proper divisors (56895055148).

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

51023134420 is a wasteful number, since it uses less digits than its factorization.

51023134420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32640 (or 32638 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 51023134420 its reverse (2443132015), we get a palindrome (53466266435).

The spelling of 51023134420 in words is "fifty-one billion, twenty-three million, one hundred thirty-four thousand, four hundred twenty".