420121213 has 8 divisors (see below), whose sum is σ = 427356576. Its totient is φ = 412897200.

The previous prime is 420121171. The next prime is 420121249. The reversal of 420121213 is 312121024.

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 420121213 - 2¹³ = 420113021 is a prime.

It is a super-2 number, since 2×420121213² = 353003667225182738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420121283) 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, 108570 + ... + 112372.

It is an arithmetic number, because the mean of its divisors is an integer number (53419572).

Almost surely, 2^420121213 is an apocalyptic number.

It is an amenable number.

420121213 is a deficient number, since it is larger than the sum of its proper divisors (7235363).

420121213 is a wasteful number, since it uses less digits than its factorization.

420121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 420121213 is about 20496.8586129680. The cubic root of 420121213 is about 748.9592753390.

Adding to 420121213 its reverse (312121024), we get a palindrome (732242237).

The spelling of 420121213 in words is "four hundred twenty million, one hundred twenty-one thousand, two hundred thirteen".