30123001131822 has 20 divisors (see below), whose sum is σ = 67497835869816. Its totient is φ = 10041000377220.

The previous prime is 30123001131791. The next prime is 30123001131823. The reversal of 30123001131822 is 22813110032103.

30123001131822 is a `hidden beast` number, since 3 + 0 + 12 + 300 + 11 + 318 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123001131823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 92972225554 + ... + 92972225877.

Almost surely, 2^{30123001131822} is an apocalyptic number.

30123001131822 is an abundant number, since it is smaller than the sum of its proper divisors (37374834737994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30123001131822 is a wasteful number, since it uses less digits than its factorization.

30123001131822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185944451445 (or 185944451436 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 30123001131822 its reverse (22813110032103), we get a palindrome (52936111163925).

The spelling of 30123001131822 in words is "thirty trillion, one hundred twenty-three billion, one million, one hundred thirty-one thousand, eight hundred twenty-two".