233451223516 has 48 divisors (see below), whose sum is σ = 478408638400. Its totient is φ = 99635235840.

The previous prime is 233451223513. The next prime is 233451223517. The reversal of 233451223516 is 615322154332.

It is a super-2 number, since 2×233451223516² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233451223513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22365 + ... + 683668.

Almost surely, 2^233451223516 is an apocalyptic number.

It is an amenable number.

233451223516 is an abundant number, since it is smaller than the sum of its proper divisors (244957414884).

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

233451223516 is a wasteful number, since it uses less digits than its factorization.

233451223516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706299 (or 706283 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

Adding to 233451223516 its reverse (615322154332), we get a palindrome (848773377848).

The spelling of 233451223516 in words is "two hundred thirty-three billion, four hundred fifty-one million, two hundred twenty-three thousand, five hundred sixteen".