51023021230 has 64 divisors (see below), whose sum is σ = 104097312000. Its totient is φ = 17889182208.

The previous prime is 51023021209. The next prime is 51023021233. The reversal of 51023021230 is 3212032015.

51023021230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 51023021198 and 51023021207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51023021233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56701 + ... + 324439.

It is an arithmetic number, because the mean of its divisors is an integer number (1626520500).

Almost surely, 2^51023021230 is an apocalyptic number.

51023021230 is an abundant number, since it is smaller than the sum of its proper divisors (53074290770).

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

51023021230 is a wasteful number, since it uses less digits than its factorization.

51023021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267841.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 51023021230 its reverse (3212032015), we get a palindrome (54235053245).

The spelling of 51023021230 in words is "fifty-one billion, twenty-three million, twenty-one thousand, two hundred thirty".