421120511 has 8 divisors (see below), whose sum is σ = 481633440. Its totient is φ = 360695808.

The previous prime is 421120489. The next prime is 421120589. The reversal of 421120511 is 115021124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421120511 is a prime.

It is a super-2 number, since 2×421120511² = 354684969569802242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421120511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421123511) 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, 11486 + ... + 31211.

It is an arithmetic number, because the mean of its divisors is an integer number (60204180).

Almost surely, 2^421120511 is an apocalyptic number.

421120511 is a deficient number, since it is larger than the sum of its proper divisors (60512929).

421120511 is a wasteful number, since it uses less digits than its factorization.

421120511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44113.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 421120511 is about 20521.2209919391. The cubic root of 421120511 is about 749.5526286056.

Adding to 421120511 its reverse (115021124), we get a palindrome (536141635).

The spelling of 421120511 in words is "four hundred twenty-one million, one hundred twenty thousand, five hundred eleven".