303730731012 has 96 divisors (see below), whose sum is σ = 773199011200. Its totient is φ = 92466220032.

The previous prime is 303730730999. The next prime is 303730731023. The reversal of 303730731012 is 210137037303.

It is a super-2 number, since 2×303730731012² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 754368 + ... + 1084680.

Almost surely, 2^303730731012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303730731012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386599505600).

303730731012 is an abundant number, since it is smaller than the sum of its proper divisors (469468280188).

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

303730731012 is a wasteful number, since it uses less digits than its factorization.

303730731012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330485 (or 330483 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 30.

Adding to 303730731012 its reverse (210137037303), we get a palindrome (513867768315).

The spelling of 303730731012 in words is "three hundred three billion, seven hundred thirty million, seven hundred thirty-one thousand, twelve".