21054013141 has 8 divisors (see below), whose sum is σ = 24074322624. Its totient is φ = 18036852000.

The previous prime is 21054013133. The next prime is 21054013157. The reversal of 21054013141 is 14131045012.

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

It is a cyclic number.

It is not a de Polignac number, because 21054013141 - 2³ = 21054013133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21054013121) 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, 772735 + ... + 799516.

It is an arithmetic number, because the mean of its divisors is an integer number (3009290328).

Almost surely, 2^21054013141 is an apocalyptic number.

It is an amenable number.

21054013141 is a deficient number, since it is larger than the sum of its proper divisors (3020309483).

21054013141 is a wasteful number, since it uses less digits than its factorization.

21054013141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574171.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 21054013141 its reverse (14131045012), we get a palindrome (35185058153).

The spelling of 21054013141 in words is "twenty-one billion, fifty-four million, thirteen thousand, one hundred forty-one".