30403340431 has 4 divisors (see below), whose sum is σ = 30507106392. Its totient is φ = 30299574472.

The previous prime is 30403340423. The next prime is 30403340519. The reversal of 30403340431 is 13404330403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13404330403 = 2707 ⋅4951729.

It is a cyclic number.

It is not a de Polignac number, because 30403340431 - 2³ = 30403340423 is a prime.

It is a super-2 number, since 2×30403340431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30403340396 and 30403340405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30403340731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51882541 + ... + 51883126.

It is an arithmetic number, because the mean of its divisors is an integer number (7626776598).

Almost surely, 2^30403340431 is an apocalyptic number.

30403340431 is a deficient number, since it is larger than the sum of its proper divisors (103765961).

30403340431 is a wasteful number, since it uses less digits than its factorization.

30403340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103765960.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 30403340431 its reverse (13404330403), we get a palindrome (43807670834).

The spelling of 30403340431 in words is "thirty billion, four hundred three million, three hundred forty thousand, four hundred thirty-one".