30123154263 has 4 divisors (see below), whose sum is σ = 40164205688. Its totient is φ = 20082102840.

The previous prime is 30123154231. The next prime is 30123154273. The reversal of 30123154263 is 36245132103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36245132103 = 3 ⋅12081710701.

It is not a de Polignac number, because 30123154263 - 2⁵ = 30123154231 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 30123154263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123154273) 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, 5020525708 + ... + 5020525713.

It is an arithmetic number, because the mean of its divisors is an integer number (10041051422).

Almost surely, 2^30123154263 is an apocalyptic number.

30123154263 is a deficient number, since it is larger than the sum of its proper divisors (10041051425).

30123154263 is a wasteful number, since it uses less digits than its factorization.

30123154263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041051424.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 30123154263 its reverse (36245132103), we get a palindrome (66368286366).

The spelling of 30123154263 in words is "thirty billion, one hundred twenty-three million, one hundred fifty-four thousand, two hundred sixty-three".