121413630 has 64 divisors (see below), whose sum is σ = 314979840. Its totient is φ = 29774976.

The previous prime is 121413601. The next prime is 121413659. The reversal of 121413630 is 36314121.

It is an interprime number because it is at equal distance from previous prime (121413601) and next prime (121413659).

It is a junction number, because it is equal to n+sod(n) for n = 121413597 and 121413606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163039 + ... + 163781.

It is an arithmetic number, because the mean of its divisors is an integer number (4921560).

Almost surely, 2^121413630 is an apocalyptic number.

121413630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121413630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157489920).

121413630 is an abundant number, since it is smaller than the sum of its proper divisors (193566210).

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

121413630 is a wasteful number, since it uses less digits than its factorization.

121413630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 121413630 is about 11018.7853232559. The cubic root of 121413630 is about 495.1716984207.

Adding to 121413630 its reverse (36314121), we get a palindrome (157727751).

The spelling of 121413630 in words is "one hundred twenty-one million, four hundred thirteen thousand, six hundred thirty".