21233054344 has 16 divisors (see below), whose sum is σ = 41907344400. Its totient is φ = 10057762512.

The previous prime is 21233054333. The next prime is 21233054369. The reversal of 21233054344 is 44345033212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69845422 + ... + 69845725.

It is an arithmetic number, because the mean of its divisors is an integer number (2619209025).

Almost surely, 2^21233054344 is an apocalyptic number.

It is an amenable number.

21233054344 is a deficient number, since it is larger than the sum of its proper divisors (20674290056).

21233054344 is a wasteful number, since it uses less digits than its factorization.

21233054344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139691172 (or 139691168 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 21233054344 its reverse (44345033212), we get a palindrome (65578087556).

The spelling of 21233054344 in words is "twenty-one billion, two hundred thirty-three million, fifty-four thousand, three hundred forty-four".