121420130 has 16 divisors (see below), whose sum is σ = 235368504. Its totient is φ = 44832000.

The previous prime is 121420121. The next prime is 121420133. The reversal of 121420130 is 31024121.

It can be written as a sum of positive squares in 4 ways, for example, as 56987401 + 64432729 = 7549^2 + 8027^2 .

It is not an unprimeable number, because it can be changed into a prime (121420133) 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, 466871 + ... + 467130.

Almost surely, 2^121420130 is an apocalyptic number.

121420130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121420130 is a deficient number, since it is larger than the sum of its proper divisors (113948374).

121420130 is a wasteful number, since it uses less digits than its factorization.

121420130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934021.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121420130 is about 11019.0802701496. The cubic root of 121420130 is about 495.1805347669.

Adding to 121420130 its reverse (31024121), we get a palindrome (152444251).

The spelling of 121420130 in words is "one hundred twenty-one million, four hundred twenty thousand, one hundred thirty".