21413052151 has 16 divisors (see below), whose sum is σ = 23210298144. Its totient is φ = 19675966464.

The previous prime is 21413052139. The next prime is 21413052169. The reversal of 21413052151 is 15125031412.

It is not a de Polignac number, because 21413052151 - 2¹⁹ = 21412527863 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 (21413052121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2083341 + ... + 2093593.

It is an arithmetic number, because the mean of its divisors is an integer number (1450643634).

Almost surely, 2^21413052151 is an apocalyptic number.

21413052151 is a deficient number, since it is larger than the sum of its proper divisors (1797245993).

21413052151 is a wasteful number, since it uses less digits than its factorization.

21413052151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13170.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 21413052151 its reverse (15125031412), we get a palindrome (36538083563).

The spelling of 21413052151 in words is "twenty-one billion, four hundred thirteen million, fifty-two thousand, one hundred fifty-one".