21010132053 has 16 divisors (see below), whose sum is σ = 31134980800. Its totient is φ = 14002768080.

The previous prime is 21010132051. The next prime is 21010132061. The reversal of 21010132053 is 35023101012.

It is not a de Polignac number, because 21010132053 - 2¹ = 21010132051 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 (21010132051) 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, 12538 + ... + 205371.

It is an arithmetic number, because the mean of its divisors is an integer number (1945936300).

Almost surely, 2^21010132053 is an apocalyptic number.

It is an amenable number.

21010132053 is a deficient number, since it is larger than the sum of its proper divisors (10124848747).

21010132053 is a wasteful number, since it uses less digits than its factorization.

21010132053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221489 (or 221483 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 21010132053 its reverse (35023101012), we get a palindrome (56033233065).

The spelling of 21010132053 in words is "twenty-one billion, ten million, one hundred thirty-two thousand, fifty-three".