121110130 has 16 divisors (see below), whose sum is σ = 218159640. Its totient is φ = 48408192.

The previous prime is 121110127. The next prime is 121110137. The reversal of 121110130 is 31011121.

It can be written as a sum of positive squares in 4 ways, for example, as 84107241 + 37002889 = 9171^2 + 6083^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121110137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12916 + ... + 20224.

Almost surely, 2^121110130 is an apocalyptic number.

121110130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121110130 is a deficient number, since it is larger than the sum of its proper divisors (97049510).

121110130 is a wasteful number, since it uses less digits than its factorization.

121110130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 121110130 is about 11005.0047705578. The cubic root of 121110130 is about 494.7587573921.

Adding to 121110130 its reverse (31011121), we get a palindrome (152121251).

Subtracting from 121110130 its reverse (31011121), we obtain a palindrome (90099009).

The spelling of 121110130 in words is "one hundred twenty-one million, one hundred ten thousand, one hundred thirty".