21024011045 has 8 divisors (see below), whose sum is σ = 25250364960. Its totient is φ = 16804841040.

The previous prime is 21024011039. The next prime is 21024011053. The reversal of 21024011045 is 54011042012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-21024011045 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1789535 + ... + 1801244.

It is an arithmetic number, because the mean of its divisors is an integer number (3156295620).

Almost surely, 2^21024011045 is an apocalyptic number.

It is an amenable number.

21024011045 is a deficient number, since it is larger than the sum of its proper divisors (4226353915).

21024011045 is a wasteful number, since it uses less digits than its factorization.

21024011045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591955.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 21024011045 its reverse (54011042012), we get a palindrome (75035053057).

The spelling of 21024011045 in words is "twenty-one billion, twenty-four million, eleven thousand, forty-five".