30431403311 has 4 divisors (see below), whose sum is σ = 30444027624. Its totient is φ = 30418779000.

The previous prime is 30431403259. The next prime is 30431403319. The reversal of 30431403311 is 11330413403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30431403311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431403319) 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, 6308540 + ... + 6313361.

It is an arithmetic number, because the mean of its divisors is an integer number (7611006906).

Almost surely, 2^30431403311 is an apocalyptic number.

30431403311 is a deficient number, since it is larger than the sum of its proper divisors (12624313).

30431403311 is a wasteful number, since it uses less digits than its factorization.

30431403311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12624312.

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

Adding to 30431403311 its reverse (11330413403), we get a palindrome (41761816714).

The spelling of 30431403311 in words is "thirty billion, four hundred thirty-one million, four hundred three thousand, three hundred eleven".