30431031413 has 4 divisors (see below), whose sum is σ = 30431474880. Its totient is φ = 30430587948.

The previous prime is 30431031403. The next prime is 30431031443. The reversal of 30431031413 is 31413013403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30431031413 - 2²⁶ = 30363922549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431031403) 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, 94445 + ... + 264162.

It is an arithmetic number, because the mean of its divisors is an integer number (7607868720).

Almost surely, 2^30431031413 is an apocalyptic number.

It is an amenable number.

30431031413 is a deficient number, since it is larger than the sum of its proper divisors (443467).

30431031413 is an equidigital number, since it uses as much as digits as its factorization.

30431031413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443466.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30431031413 its reverse (31413013403), we get a palindrome (61844044816).

The spelling of 30431031413 in words is "thirty billion, four hundred thirty-one million, thirty-one thousand, four hundred thirteen".