121623330 has 16 divisors (see below), whose sum is σ = 291896064. Its totient is φ = 32432880.

The previous prime is 121623319. The next prime is 121623371. The reversal of 121623330 is 33326121.

It is a junction number, because it is equal to n+sod(n) for n = 121623297 and 121623306.

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, 2027026 + ... + 2027085.

It is an arithmetic number, because the mean of its divisors is an integer number (18243504).

Almost surely, 2^121623330 is an apocalyptic number.

121623330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121623330 is an abundant number, since it is smaller than the sum of its proper divisors (170272734).

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

121623330 is a wasteful number, since it uses less digits than its factorization.

121623330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054121.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 121623330 is about 11028.2967859956. The cubic root of 121623330 is about 495.4566136628.

Adding to 121623330 its reverse (33326121), we get a palindrome (154949451).

The spelling of 121623330 in words is "one hundred twenty-one million, six hundred twenty-three thousand, three hundred thirty".