21032140101 has 24 divisors (see below), whose sum is σ = 32652556704. Its totient is φ = 12006842400.

The previous prime is 21032140093. The next prime is 21032140159. The reversal of 21032140101 is 10104123012.

It is not a de Polignac number, because 21032140101 - 2³ = 21032140093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032140001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86431 + ... + 222563.

It is an arithmetic number, because the mean of its divisors is an integer number (1360523196).

Almost surely, 2^21032140101 is an apocalyptic number.

21032140101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21032140101 is a deficient number, since it is larger than the sum of its proper divisors (11620416603).

21032140101 is a wasteful number, since it uses less digits than its factorization.

21032140101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137201 (or 137194 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21032140101 its reverse (10104123012), we get a palindrome (31136263113).

The spelling of 21032140101 in words is "twenty-one billion, thirty-two million, one hundred forty thousand, one hundred one".