213633123460 has 24 divisors (see below), whose sum is σ = 448677827136. Its totient is φ = 85444055520.

The previous prime is 213633123443. The next prime is 213633123461. The reversal of 213633123460 is 64321336312.

It is a super-2 number, since 2×213633123460² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213633123461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382512 + ... + 757351.

It is an arithmetic number, because the mean of its divisors is an integer number (18694909464).

Almost surely, 2^213633123460 is an apocalyptic number.

213633123460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213633123460 is an abundant number, since it is smaller than the sum of its proper divisors (235044703676).

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

213633123460 is a wasteful number, since it uses less digits than its factorization.

213633123460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149243 (or 1149241 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 34.

Adding to 213633123460 its reverse (64321336312), we get a palindrome (277954459772).

The spelling of 213633123460 in words is "two hundred thirteen billion, six hundred thirty-three million, one hundred twenty-three thousand, four hundred sixty".