21053451010151 has 8 divisors (see below), whose sum is σ = 24069903705120. Its totient is φ = 18039202524288.

The previous prime is 21053451010093. The next prime is 21053451010169. The reversal of 21053451010151 is 15101015435012.

It is a happy number.

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 21053451010151 - 2²⁶ = 21053383901287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21053451010171) 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, 551031806 + ... + 551070011.

It is an arithmetic number, because the mean of its divisors is an integer number (3008737963140).

Almost surely, 2^{21053451010151} is an apocalyptic number.

21053451010151 is a deficient number, since it is larger than the sum of its proper divisors (3016452694969).

21053451010151 is a wasteful number, since it uses less digits than its factorization.

21053451010151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102104553.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 21053451010151 its reverse (15101015435012), we get a palindrome (36154466445163).

The spelling of 21053451010151 in words is "twenty-one trillion, fifty-three billion, four hundred fifty-one million, ten thousand, one hundred fifty-one".