30724313311 has 4 divisors (see below), whose sum is σ = 31715420224. Its totient is φ = 29733206400.

The previous prime is 30724313309. The next prime is 30724313327. The reversal of 30724313311 is 11331342703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11331342703 = 281 ⋅40325063.

It is a cyclic number.

It is not a de Polignac number, because 30724313311 - 2¹ = 30724313309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30724313311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30724313381) 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, 495553410 + ... + 495553471.

It is an arithmetic number, because the mean of its divisors is an integer number (7928855056).

Almost surely, 2^30724313311 is an apocalyptic number.

30724313311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30724313311 is a deficient number, since it is larger than the sum of its proper divisors (991106913).

30724313311 is an equidigital number, since it uses as much as digits as its factorization.

30724313311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991106912.

The product of its (nonzero) digits is 4536, while the sum is 28.

It can be divided in two parts, 30724 and 313311, that added together give a triangular number (344035 = T₈₂₉).

The spelling of 30724313311 in words is "thirty billion, seven hundred twenty-four million, three hundred thirteen thousand, three hundred eleven".