30493111731 has 4 divisors (see below), whose sum is σ = 40657482312. Its totient is φ = 20328741152.

The previous prime is 30493111721. The next prime is 30493111763. The reversal of 30493111731 is 13711139403.

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

It is a cyclic number.

It is not a de Polignac number, because 30493111731 - 2⁵ = 30493111699 is a prime.

It is a super-2 number, since 2×30493111731² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30493111692 and 30493111701.

It is not an unprimeable number, because it can be changed into a prime (30493111711) 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, 5082185286 + ... + 5082185291.

It is an arithmetic number, because the mean of its divisors is an integer number (10164370578).

Almost surely, 2^30493111731 is an apocalyptic number.

30493111731 is a deficient number, since it is larger than the sum of its proper divisors (10164370581).

30493111731 is a wasteful number, since it uses less digits than its factorization.

30493111731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10164370580.

The product of its (nonzero) digits is 6804, while the sum is 33.

The spelling of 30493111731 in words is "thirty billion, four hundred ninety-three million, one hundred eleven thousand, seven hundred thirty-one".