21514044011151 has 8 divisors (see below), whose sum is σ = 28686536920624. Its totient is φ = 14342123554560.

The previous prime is 21514044011147. The next prime is 21514044011167. The reversal of 21514044011151 is 15111044041512.

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

It is not a de Polignac number, because 21514044011151 - 2² = 21514044011147 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 (21514044011651) 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, 143025520 + ... + 143175861.

It is an arithmetic number, because the mean of its divisors is an integer number (3585817115078).

Almost surely, 2^{21514044011151} is an apocalyptic number.

21514044011151 is a deficient number, since it is larger than the sum of its proper divisors (7172492909473).

21514044011151 is a wasteful number, since it uses less digits than its factorization.

21514044011151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286226441.

The product of its (nonzero) digits is 3200, while the sum is 30.

Adding to 21514044011151 its reverse (15111044041512), we get a palindrome (36625088052663).

The spelling of 21514044011151 in words is "twenty-one trillion, five hundred fourteen billion, forty-four million, eleven thousand, one hundred fifty-one".