421020115 has 8 divisors (see below), whose sum is σ = 522645840. Its totient is φ = 325201632.

The previous prime is 421020097. The next prime is 421020143. The reversal of 421020115 is 511020124.

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 421020115 - 2¹¹ = 421018067 is a prime.

It is a super-2 number, since 2×421020115² = 354515874469226450, which contains 22 as substring.

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, 1451649 + ... + 1451938.

It is an arithmetic number, because the mean of its divisors is an integer number (65330730).

Almost surely, 2^421020115 is an apocalyptic number.

421020115 is a deficient number, since it is larger than the sum of its proper divisors (101625725).

421020115 is a wasteful number, since it uses less digits than its factorization.

421020115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903621.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 421020115 is about 20518.7746953857. The cubic root of 421020115 is about 749.4930589063.

Adding to 421020115 its reverse (511020124), we get a palindrome (932040239).

Subtracting 421020115 from its reverse (511020124), we obtain a palindrome (90000009).

The spelling of 421020115 in words is "four hundred twenty-one million, twenty thousand, one hundred fifteen".