211423040304 has 80 divisors (see below), whose sum is σ = 635978794752. Its totient is φ = 59266831104.

The previous prime is 211423040287. The next prime is 211423040347. The reversal of 211423040304 is 403040324112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5918374 + ... + 5953989.

Almost surely, 2^211423040304 is an apocalyptic number.

211423040304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211423040304 is an abundant number, since it is smaller than the sum of its proper divisors (424555754448).

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

211423040304 is a wasteful number, since it uses less digits than its factorization.

211423040304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872434 (or 11872428 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 211423040304 its reverse (403040324112), we get a palindrome (614463364416).

The spelling of 211423040304 in words is "two hundred eleven billion, four hundred twenty-three million, forty thousand, three hundred four".