30123211110 has 16 divisors (see below), whose sum is σ = 72295706736. Its totient is φ = 8032856288.

The previous prime is 30123211039. The next prime is 30123211121. The reversal of 30123211110 is 1111232103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30123211110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502053489 + ... + 502053548.

It is an arithmetic number, because the mean of its divisors is an integer number (4518481671).

Almost surely, 2^30123211110 is an apocalyptic number.

30123211110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30123211110 is an abundant number, since it is smaller than the sum of its proper divisors (42172495626).

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

30123211110 is a wasteful number, since it uses less digits than its factorization.

30123211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004107047.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30123211110 its reverse (1111232103), we get a palindrome (31234443213).

The spelling of 30123211110 in words is "thirty billion, one hundred twenty-three million, two hundred eleven thousand, one hundred ten".