30121020010 has 16 divisors (see below), whose sum is σ = 54267734016. Its totient is φ = 12037319568.

The previous prime is 30121019989. The next prime is 30121020023. The reversal of 30121020010 is 1002012103.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 1374642 + ... + 1396381.

It is an arithmetic number, because the mean of its divisors is an integer number (3391733376).

Almost surely, 2^30121020010 is an apocalyptic number.

30121020010 is a deficient number, since it is larger than the sum of its proper divisors (24146714006).

30121020010 is a wasteful number, since it uses less digits than its factorization.

30121020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772117.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 30121020010 its reverse (1002012103), we get a palindrome (31123032113).

The spelling of 30121020010 in words is "thirty billion, one hundred twenty-one million, twenty thousand, ten".