30123131122 has 12 divisors (see below), whose sum is σ = 52561790190. Its totient is φ = 12909913296.

The previous prime is 30123131099. The next prime is 30123131131. The reversal of 30123131122 is 22113132103.

It can be written as a sum of positive squares in only one way, i.e., 19802399841 + 10320731281 = 140721^2 + 101591^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30123131122.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153689347 + ... + 153689542.

Almost surely, 2^30123131122 is an apocalyptic number.

30123131122 is a deficient number, since it is larger than the sum of its proper divisors (22438659068).

30123131122 is a wasteful number, since it uses less digits than its factorization.

30123131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307378905 (or 307378898 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30123131122 its reverse (22113132103), we get a palindrome (52236263225).

The spelling of 30123131122 in words is "thirty billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred twenty-two".