121552030 has 16 divisors (see below), whose sum is σ = 224707680. Its totient is φ = 47306592.

The previous prime is 121552027. The next prime is 121552031. The reversal of 121552030 is 30255121.

It is a junction number, because it is equal to n+sod(n) for n = 121551989 and 121552007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121552031) 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, 163890 + ... + 164629.

It is an arithmetic number, because the mean of its divisors is an integer number (14044230).

Almost surely, 2^121552030 is an apocalyptic number.

121552030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121552030 is a deficient number, since it is larger than the sum of its proper divisors (103155650).

121552030 is a wasteful number, since it uses less digits than its factorization.

121552030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328563.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 121552030 is about 11025.0637186367. The cubic root of 121552030 is about 495.3597765348.

The spelling of 121552030 in words is "one hundred twenty-one million, five hundred fifty-two thousand, thirty".