30404311031 has 4 divisors (see below), whose sum is σ = 30405816312. Its totient is φ = 30402805752.

The previous prime is 30404311009. The next prime is 30404311033. The reversal of 30404311031 is 13011340403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13011340403 = 4751 ⋅2738653.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30404311031 is a prime.

It is a super-2 number, since 2×30404311031² (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 = 30404310994 and 30404311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30404311033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721925 + ... + 762878.

It is an arithmetic number, because the mean of its divisors is an integer number (7601454078).

Almost surely, 2^30404311031 is an apocalyptic number.

30404311031 is a deficient number, since it is larger than the sum of its proper divisors (1505281).

30404311031 is a wasteful number, since it uses less digits than its factorization.

30404311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505280.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30404311031 its reverse (13011340403), we get a palindrome (43415651434).

The spelling of 30404311031 in words is "thirty billion, four hundred four million, three hundred eleven thousand, thirty-one".