30431042031 has 8 divisors (see below), whose sum is σ = 43695855280. Its totient is φ = 18726795072.

The previous prime is 30431042011. The next prime is 30431042039. The reversal of 30431042031 is 13024013403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30431042031 - 2⁹ = 30431041519 is a prime.

It is a super-2 number, since 2×30431042031² (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 = 30431041989 and 30431042007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431042039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390141526 + ... + 390141603.

It is an arithmetic number, because the mean of its divisors is an integer number (5461981910).

Almost surely, 2^30431042031 is an apocalyptic number.

30431042031 is a deficient number, since it is larger than the sum of its proper divisors (13264813249).

30431042031 is a wasteful number, since it uses less digits than its factorization.

30431042031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780283145.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30431042031 its reverse (13024013403), we get a palindrome (43455055434).

The spelling of 30431042031 in words is "thirty billion, four hundred thirty-one million, forty-two thousand, thirty-one".