213023440100 has 36 divisors (see below), whose sum is σ = 482359168704. Its totient is φ = 81504619680.

The previous prime is 213023440037. The next prime is 213023440103. The reversal of 213023440100 is 1044320312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (213023440103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46307144 + ... + 46311743.

Almost surely, 2^213023440100 is an apocalyptic number.

213023440100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213023440100 is an abundant number, since it is smaller than the sum of its proper divisors (269335728604).

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

213023440100 is a wasteful number, since it uses less digits than its factorization.

213023440100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92618924 (or 92618917 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 213023440100 its reverse (1044320312), we get a palindrome (214067760412).

The spelling of 213023440100 in words is "two hundred thirteen billion, twenty-three million, four hundred forty thousand, one hundred".