312000522030 has 128 divisors (see below), whose sum is σ = 852622848000. Its totient is φ = 81139564800.

The previous prime is 312000522023. The next prime is 312000522049. The reversal of 312000522030 is 30225000213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 312000521994 and 312000522012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47276671 + ... + 47283269.

It is an arithmetic number, because the mean of its divisors is an integer number (6661116000).

Almost surely, 2^312000522030 is an apocalyptic number.

312000522030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312000522030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426311424000).

312000522030 is an abundant number, since it is smaller than the sum of its proper divisors (540622325970).

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

312000522030 is a wasteful number, since it uses less digits than its factorization.

312000522030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927 (or 10921 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 312000522030 its reverse (30225000213), we get a palindrome (342225522243).

The spelling of 312000522030 in words is "three hundred twelve billion, five hundred twenty-two thousand, thirty".