21053693341 has 8 divisors (see below), whose sum is σ = 21465324000. Its totient is φ = 20642595792.

The previous prime is 21053693321. The next prime is 21053693347. The reversal of 21053693341 is 14339635012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21053693341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21053693341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21053693347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53055 + ... + 211948.

It is an arithmetic number, because the mean of its divisors is an integer number (2683165500).

Almost surely, 2^21053693341 is an apocalyptic number.

It is an amenable number.

21053693341 is a deficient number, since it is larger than the sum of its proper divisors (411630659).

21053693341 is a wasteful number, since it uses less digits than its factorization.

21053693341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266555.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 21053693341 in words is "twenty-one billion, fifty-three million, six hundred ninety-three thousand, three hundred forty-one".