30431403140 has 12 divisors (see below), whose sum is σ = 63905946636. Its totient is φ = 12172561248.

The previous prime is 30431403139. The next prime is 30431403169. The reversal of 30431403140 is 4130413403.

It can be written as a sum of positive squares in 2 ways, for example, as 18977266564 + 11454136576 = 137758^2 + 107024^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760785059 + ... + 760785098.

It is an arithmetic number, because the mean of its divisors is an integer number (5325495553).

Almost surely, 2^30431403140 is an apocalyptic number.

It is an amenable number.

30431403140 is an abundant number, since it is smaller than the sum of its proper divisors (33474543496).

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

30431403140 is a wasteful number, since it uses less digits than its factorization.

30431403140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521570166 (or 1521570164 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30431403140 its reverse (4130413403), we get a palindrome (34561816543).

The spelling of 30431403140 in words is "thirty billion, four hundred thirty-one million, four hundred three thousand, one hundred forty".