30020431340 has 48 divisors (see below), whose sum is σ = 63874836480. Its totient is φ = 11849872320.

The previous prime is 30020431339. The next prime is 30020431373. The reversal of 30020431340 is 4313402003.

It is a Harshad number since it is a multiple of its sum of digits (20).

30020431340 is a modest number, since divided by 431340 gives 30020 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3950945 + ... + 3958535.

It is an arithmetic number, because the mean of its divisors is an integer number (1330725760).

Almost surely, 2^30020431340 is an apocalyptic number.

It is an amenable number.

30020431340 is an abundant number, since it is smaller than the sum of its proper divisors (33854405140).

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

30020431340 is a wasteful number, since it uses less digits than its factorization.

30020431340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182 (or 10180 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30020431340 its reverse (4313402003), we get a palindrome (34333833343).

The spelling of 30020431340 in words is "thirty billion, twenty million, four hundred thirty-one thousand, three hundred forty".