351030521330240 has 56 divisors (see below), whose sum is σ = 844508866403832. Its totient is φ = 138964659978240.

The previous prime is 351030521330239. The next prime is 351030521330257. The reversal of 351030521330240 is 42033125030153.

It can be written as a sum of positive squares in 4 ways, for example, as 115058402934784 + 235972118395456 = 10726528^2 + 15361384^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 351030521330197 and 351030521330206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5654455451 + ... + 5654517530.

It is an arithmetic number, because the mean of its divisors is an integer number (15080515471497).

Almost surely, 2^{351030521330240} is an apocalyptic number.

It is an amenable number.

351030521330240 is an abundant number, since it is smaller than the sum of its proper divisors (493478345073592).

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

351030521330240 is a wasteful number, since it uses less digits than its factorization.

351030521330240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11308973095 (or 11308973085 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 351030521330240 its reverse (42033125030153), we get a palindrome (393063646360393).

The spelling of 351030521330240 in words is "three hundred fifty-one trillion, thirty billion, five hundred twenty-one million, three hundred thirty thousand, two hundred forty".