30311420040 has 96 divisors (see below), whose sum is σ = 107467776000. Its totient is φ = 7348222080.

The previous prime is 30311419939. The next prime is 30311420059. The reversal of 30311420040 is 4002411303.

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 = 30311419995 and 30311420022.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3823240 + ... + 3831159.

It is an arithmetic number, because the mean of its divisors is an integer number (1119456000).

Almost surely, 2^30311420040 is an apocalyptic number.

30311420040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30311420040 is an abundant number, since it is smaller than the sum of its proper divisors (77156355960).

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

30311420040 is a wasteful number, since it uses less digits than its factorization.

30311420040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654427 (or 7654420 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30311420040 its reverse (4002411303), we get a palindrome (34313831343).

The spelling of 30311420040 in words is "thirty billion, three hundred eleven million, four hundred twenty thousand, forty".