121023315 has 40 divisors (see below), whose sum is σ = 247943520. Its totient is φ = 55323648.

The previous prime is 121023299. The next prime is 121023359. The reversal of 121023315 is 513320121.

It is not a de Polignac number, because 121023315 - 2⁴ = 121023299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18510 + ... + 24179.

It is an arithmetic number, because the mean of its divisors is an integer number (6198588).

Almost surely, 2^121023315 is an apocalyptic number.

121023315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121023315 is an abundant number, since it is smaller than the sum of its proper divisors (126920205).

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

121023315 is an equidigital number, since it uses as much as digits as its factorization.

121023315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42713 (or 42704 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 121023315 is about 11001.0597216814. The cubic root of 121023315 is about 494.6405103367.

Adding to 121023315 its reverse (513320121), we get a palindrome (634343436).

The spelling of 121023315 in words is "one hundred twenty-one million, twenty-three thousand, three hundred fifteen".