30131101024243 has 4 divisors (see below), whose sum is σ = 30131255703688. Its totient is φ = 30130946344800.

The previous prime is 30131101024229. The next prime is 30131101024279. The reversal of 30131101024243 is 34242010113103.

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-30131101024243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30131101024543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77047158 + ... + 77437243.

It is an arithmetic number, because the mean of its divisors is an integer number (7532813925922).

Almost surely, 2^{30131101024243} is an apocalyptic number.

30131101024243 is a deficient number, since it is larger than the sum of its proper divisors (154679445).

30131101024243 is a wasteful number, since it uses less digits than its factorization.

30131101024243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154679444.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 30131101024243 its reverse (34242010113103), we get a palindrome (64373111137346).

The spelling of 30131101024243 in words is "thirty trillion, one hundred thirty-one billion, one hundred one million, twenty-four thousand, two hundred forty-three".