30000121010 has 16 divisors (see below), whose sum is σ = 54095131800. Its totient is φ = 11978956416.

The previous prime is 30000120977. The next prime is 30000121013. The reversal of 30000121010 is 1012100003.

It can be written as a sum of positive squares in 4 ways, for example, as 8036584609 + 21963536401 = 89647^2 + 148201^2 .

It is a super-2 number, since 2×30000121010² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30000121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2630525 + ... + 2641904.

Almost surely, 2^30000121010 is an apocalyptic number.

30000121010 is a deficient number, since it is larger than the sum of its proper divisors (24095010790).

30000121010 is a wasteful number, since it uses less digits than its factorization.

30000121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273005.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 30000121010 its reverse (1012100003), we get a palindrome (31012221013).

The spelling of 30000121010 in words is "thirty billion, one hundred twenty-one thousand, ten".