121445130 has 16 divisors (see below), whose sum is σ = 291468384. Its totient is φ = 32385360.

The previous prime is 121445119. The next prime is 121445141. The reversal of 121445130 is 31544121.

It is an interprime number because it is at equal distance from previous prime (121445119) and next prime (121445141).

It is a junction number, because it is equal to n+sod(n) for n = 121445097 and 121445106.

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, 2024056 + ... + 2024115.

It is an arithmetic number, because the mean of its divisors is an integer number (18216774).

Almost surely, 2^121445130 is an apocalyptic number.

121445130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121445130 is an abundant number, since it is smaller than the sum of its proper divisors (170023254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121445130 is a wasteful number, since it uses less digits than its factorization.

121445130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048181.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121445130 is about 11020.2146077107. The cubic root of 121445130 is about 495.2145177752.

Adding to 121445130 its reverse (31544121), we get a palindrome (152989251).

The spelling of 121445130 in words is "one hundred twenty-one million, four hundred forty-five thousand, one hundred thirty".