121020331 has 8 divisors (see below), whose sum is σ = 129580560. Its totient is φ = 112620288.

The previous prime is 121020307. The next prime is 121020371. The reversal of 121020331 is 133020121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121020331 - 2¹³ = 121012139 is a prime.

It is a super-2 number, since 2×121020331² = 29291841030699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121020301) 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, 38481 + ... + 41506.

It is an arithmetic number, because the mean of its divisors is an integer number (16197570).

Almost surely, 2^121020331 is an apocalyptic number.

121020331 is a deficient number, since it is larger than the sum of its proper divisors (8560229).

121020331 is an equidigital number, since it uses as much as digits as its factorization.

121020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80093.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121020331 is about 11000.9240975474. The cubic root of 121020331 is about 494.6364449508.

Adding to 121020331 its reverse (133020121), we get a palindrome (254040452).

The spelling of 121020331 in words is "one hundred twenty-one million, twenty thousand, three hundred thirty-one".