120121030 has 16 divisors (see below), whose sum is σ = 216360144. Its totient is φ = 48016800.

The previous prime is 120121013. The next prime is 120121033. The reversal of 120121030 is 30121021.

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

It is a junction number, because it is equal to n+sod(n) for n = 120120998 and 120121016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17605 + ... + 23455.

It is an arithmetic number, because the mean of its divisors is an integer number (13522509).

Almost surely, 2^120121030 is an apocalyptic number.

120121030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120121030 is a deficient number, since it is larger than the sum of its proper divisors (96239114).

120121030 is a wasteful number, since it uses less digits than its factorization.

120121030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911.

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

The square root of 120121030 is about 10959.9739963195. The cubic root of 120121030 is about 493.4081845074.

Adding to 120121030 its reverse (30121021), we get a palindrome (150242051).

Subtracting from 120121030 its reverse (30121021), we obtain a palindrome (90000009).

The spelling of 120121030 in words is "one hundred twenty million, one hundred twenty-one thousand, thirty".