30121035 has 48 divisors (see below), whose sum is σ = 56733696. Its totient is φ = 13605312.

The previous prime is 30121001. The next prime is 30121043. The reversal of 30121035 is 53012103.

It is a happy number.

It is not a de Polignac number, because 30121035 - 2¹⁰ = 30120011 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78454 + ... + 78836.

It is an arithmetic number, because the mean of its divisors is an integer number (1181952).

Almost surely, 2^30121035 is an apocalyptic number.

30121035 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30121035 is a deficient number, since it is larger than the sum of its proper divisors (26612661).

30121035 is a wasteful number, since it uses less digits than its factorization.

30121035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 30121035 is about 5488.2633865368. The cubic root of 30121035 is about 311.1405608696.

Adding to 30121035 its reverse (53012103), we get a palindrome (83133138).

The spelling of 30121035 in words is "thirty million, one hundred twenty-one thousand, thirty-five".