30120121031044 has 24 divisors (see below), whose sum is σ = 57502753475328. Its totient is φ = 13690796430240.

The previous prime is 30120121031027. The next prime is 30120121031071. The reversal of 30120121031044 is 44013012102103.

It is a super-2 number, since 2×30120121031044² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 522267 + ... + 7779010.

It is an arithmetic number, because the mean of its divisors is an integer number (2395948061472).

Almost surely, 2^{30120121031044} is an apocalyptic number.

It is an amenable number.

30120121031044 is a deficient number, since it is larger than the sum of its proper divisors (27382632444284).

30120121031044 is a wasteful number, since it uses less digits than its factorization.

30120121031044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8383755 (or 8383753 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 30120121031044 its reverse (44013012102103), we get a palindrome (74133133133147).

The spelling of 30120121031044 in words is "thirty trillion, one hundred twenty billion, one hundred twenty-one million, thirty-one thousand, forty-four".