30431421234 has 24 divisors (see below), whose sum is σ = 69813261180. Its totient is φ = 9547112448.

The previous prime is 30431421199. The next prime is 30431421263. The reversal of 30431421234 is 43212413403.

30431421234 is a `hidden beast` number, since 3 + 0 + 4 + 3 + 1 + 421 + 234 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28831021209 + 1600400025 = 169797^2 + 40005^2 .

It is a super-2 number, since 2×30431421234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30431421198 and 30431421207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49724239 + ... + 49724850.

Almost surely, 2^30431421234 is an apocalyptic number.

30431421234 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30431421234 is an abundant number, since it is smaller than the sum of its proper divisors (39381839946).

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

30431421234 is a wasteful number, since it uses less digits than its factorization.

30431421234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99449114 (or 99449111 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 30431421234 its reverse (43212413403), we get a palindrome (73643834637).

The spelling of 30431421234 in words is "thirty billion, four hundred thirty-one million, four hundred twenty-one thousand, two hundred thirty-four".