420552111213 has 40 divisors (see below), whose sum is σ = 677204451000. Its totient is φ = 258553907712.

The previous prime is 420552111209. The next prime is 420552111253. The reversal of 420552111213 is 312111255024.

It is a happy number.

420552111213 is a `hidden beast` number, since 4 + 20 + 5 + 521 + 112 + 1 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 68111604324 + 352440506889 = 260982^2 + 593667^2 .

It is not a de Polignac number, because 420552111213 - 2² = 420552111209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420552111253) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 914233 + ... + 1294961.

It is an arithmetic number, because the mean of its divisors is an integer number (16930111275).

Almost surely, 2^420552111213 is an apocalyptic number.

It is an amenable number.

420552111213 is a deficient number, since it is larger than the sum of its proper divisors (256652339787).

420552111213 is a wasteful number, since it uses less digits than its factorization.

420552111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381803 (or 381794 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 420552111213 its reverse (312111255024), we get a palindrome (732663366237).

The spelling of 420552111213 in words is "four hundred twenty billion, five hundred fifty-two million, one hundred eleven thousand, two hundred thirteen".